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Brain development study in the United States
The ABCD (Adolescent Brain Cognitive Development) Study is an ongoing longitudinal research study being undertaken by a consortium of 21 data collection
ABCD_Study
Topics referred to by the same term
Look up ABCD in Wiktionary, the free dictionary. ABCD may refer to: ABCD (film), a 2005 Indian Tamil-language romance ABCD: American Born Confused Desi
ABCD
2013 Indian film
ABCD: American-Born Confused Desi is a 2013 Indian Malayalam-language black comedy film directed by Martin Prakkat, and produced by Shibu Thameens under
ABCD: American-Born Confused Desi (2013 film)
ABCD:_American-Born_Confused_Desi_(2013_film)
Video that becomes popular via Internet sharing
participated in the Adolescent Brain Cognitive Development (ABCD) Study, the most extensive long-term study of brain development in the United States. The Social
Viral_video
Series of embargoes against Japan beginning in 1940
The ABCD encirclement (ABCD包囲網, Ēbīshīdī hōimō) was a series of embargoes against the Empire of Japan by foreign nations, including America, Britain,
ABCD_Encirclement
American psychology professor
Health funded the Adolescent Brain Cognitive Development (ABCD) Study®, the largest long-term study of child and adolescent health and brain development in
BJ_Casey
Effects of cigarettes on the developing human brain
A longitudinal cohort study conducted in 2025 and based on data from the Adolescent Brain Cognitive Development (ABCD) Study reported that maternal tobacco
Effects of nicotine on human brain development
Effects_of_nicotine_on_human_brain_development
Human transition from puberty to adult
impulsivity and other behaviors characteristic of adolescence. Some studies like the ABCD Study are researching on the baseline of adolescent cognitive development
Adolescence
Medical condition
beginning, medical officials defined ABCD syndrome by the four key characteristics of the syndrome. In the first case study of the Kurdish girl, researchers
ABCD_syndrome
Rita Z.; Heitzeg, Mary (2018). "Adolescent brain cognitive development (ABCD) study: Overview of substance use assessment methods". Developmental Cognitive
Health_effects_of_nicotine
Score for determining the risk of stroke after TIA
modified version of the ABCD score of 2005 (the ABCD score did not consider the presence of diabetes). In the largest study based on emergency department
ABCD²_score
Methodology for uncovering strengths within communities
Asset-based community development (ABCD) is a methodology for the sustainable development of communities based on their strengths and potentials. It involves
Asset-based community development
Asset-based_community_development
Development (ABCD) Study. Ongoing effort to collect data from more diverse sample is also recommended to allow for generalization of study results to a
Personality_neuroscience
Indian actor (born 1987)
comedies Dilwale (2015), Dishoom (2016), and Judwaa 2 (2017); the dance film ABCD 2 (2015); and the drama Sui Dhaaga (2018). Dhawan also received praise for
Varun_Dhawan
Metric on a complex projective space endowed with Hermitian form
tensor for Fubini–Study metrics in general is given by W a b c d = R a b c d − 2 ( δ a c δ b d − δ a d δ b c ) {\displaystyle W_{abcd}=R_{abcd}-2\left(\delta
Fubini–Study_metric
American psychologist and neuroscientist
panels for the Adolescent Brain Cognitive Development (ABCD) Study and the Kavli Human Study Distinguished Scientific Award for Early Career Contributions
Russell_Poldrack
Indian actor, playback singer and producer (born 1983)
for his performance in Ustad Hotel (2012). Following his performance in ABCD (2013), Neelakasham Pachakadal Chuvanna Bhoomi (2013), and Vaayai Moodi Pesavum
Dulquer_Salmaan
Indian choreographer and film director (born 1974)
dance-based film ABCD: Any Body Can Dance which starring Prabhu Deva, Dharmesh Yelande, Lauren Gottlieb, Salman Yusuff Khan and Punit Pathak. ABCD received positive
Remo_D'Souza
Skin cancer originating in melanocytes
than 6 mm in diameter. Seborrheic keratosis may meet some or all of the ABCD criteria and may be sometimes mistaken for melanoma. Doctors can generally
Melanoma
Quadrilateral whose vertices lie on a circle
In a convex quadrilateral ABCD, let △EFG be the diagonal triangle of ABCD and let ω be the nine-point circle of △EFG. ABCD is cyclic if and only if the
Cyclic_quadrilateral
American professor of epidemiology and psychiatry
in children: Results from the Adolescent Brain Cognitive Development (ABCD) Study". JAMA Psychiatry. doi:10.1001/jamapsychiatry.2021.0350. PMC 8060885
Myrna_Weissman
American actress
Brooks in Looking for Comedy in the Muslim World. She debuted in the film ABCD and has appeared in the films American Chai, I Can't Think Straight, and
Sheetal_Sheth
Indian film producer
Killed Jessica, Delhi Belly, Paan Singh Tomar, Shahid, Rowdy Rathore, Barfi!, ABCD: Any Body Can Dance, Kai Po Che!, Yeh Jawaani Hai Deewani, The Lunchbox and
Siddharth_Roy_Kapur
American developmental scientist
2021). "An update on the assessment of culture and environment in the ABCD Study®: Emerging literature and protocol updates over three measurement waves"
Amanda_Sheffield_Morris
Quadrilateral with four right angles
refer to a non-square rectangle. A rectangle with vertices ABCD would be denoted as ABCD. The word rectangle comes from the Latin rectangulus, which
Rectangle
Convex quadrilateral with at least one pair of parallel sides
quadrilateral in Euclidean geometry, but there are also crossed cases. If shape ABCD is a convex trapezoid, then the ABDC is a crossed trapezoid. The metric formulas
Trapezoid
American actress (born 1979)
Nonfiction". The New York Times. July 6, 2014. Petski, Denise (August 4, 2016). "ABCd Orders More 'Forever 31', Acquires Jenny Mollen Project & More – TCA". Deadline
Jenny_Mollen
Periodic variation in the T wave of an electrocardiogram
have been enrolled in Spectral Method studies that predicted outcomes, including the ALPHA study and the ABCD study. An additional 3145 (28% of total) subjects
T_wave_alternans
US$0.10 per gram, the lowest of any country in the world. A study by the German data firm ABCD found that New Delhi and Mumbai were the third and sixth largest
Cannabis_in_India
American neuroscientist
national co-director of the Adolescent Brain Cognitive Development (ABCD) Study. Washburn, David (May 1, 2009). "A Better Understanding of the Brain"
Terry_Jernigan
American basketball player (1978–2020)
Yahoo! Sports. Archived from the original on December 6, 2015. "ABCD Camp". Reebok ABCD Camp. Archived from the original on March 30, 2010. Retrieved June
Kobe_Bryant
Indian actress (born 1976)
came back from Toronto, she appeared as a judge of Zee Telugu dance show ABCD-Anybody Can Dance and judged Kings of Comedy Juniors on Vijay TV. She is
Rambha_(actress)
Reduction of housing prices with age
Kamal S. (1987). Housing: A Multidisciplinary Dictionary (1 ed.). Ottawa: ABCD-Academy Book. pp. 189, 215. ISBN 0-921139-01-2. Myers, Dowell; Park, JungHo
Filtering_(housing)
Relates the 4 sides and 2 diagonals of a quadrilateral with vertices on a common circle
demonstration of Ptolemy's theorem, based on Derrick & Herstein (2012). Let ABCD be a cyclic quadrilateral. On the chord BC, the inscribed angles ∠BAC = ∠BDC
Ptolemy's_theorem
African-American colloquial term
"N-Word" in the context of Racial Identity attitudes". Journal of Pan African Studies. 5 (1). Aldridge, Kevin (5 August 2001). "Slurs often adopted by those
Nigga
Racial slur against Black people
Historian Eugene Genovese, noted for bringing a Marxist perspective to the study of power, class and relations between planters and slaves in the South,
Nigger
Indian model and actor (born 1977)
noted that "he is able to bring out the sensibilities of the character". ABCD, a romance film released in August 2005. In 2006, he acted in love story
Shaam_(actor)
Minor form of stroke
stroke occurring after a TIA can be predicted using the ABCD² score. One limitation of the ABCD² score is that it does not reliably predict the level of
Transient_ischemic_attack
Extinct clade of dinosaurs
Bibcode:2017Pbio...43..435B. doi:10.1017/pab.2017.4. hdl:1983/ae3d42f3-c115-4a9a-abcd-ece397f0d265. Yates, Adam M.; Bonnan, Matthew F.; Neveling, Johann; Chinsamy
Sauropodomorpha
Oïl language spoken in eastern Brittany, France
group, ABCD offers several options so that users can choose among them. This makes it possible to cover regional variants, and a text written in ABCD will
Gallo_language
ratio of two same quantities, the parameter D is unitless. To summarize, ABCD Parameters for a two port(four terminal) passive, linear and bilateral network
Performance and modelling of AC transmission
Performance_and_modelling_of_AC_transmission
Term for people from the United States
for the Congregationalists, Presbyterians, and Methodists among them. A study of 65 predominantly Yankee counties showed that they voted only 40 percent
Yankee
Instruction on human sexuality issues
September 2013, the government launched a new program called les ABCD de l'égalité ('the ABCD of equality') whose main aim is to "fight gender stereotypes
Sex_education
Classification used in differential geometry and general relativity
{\displaystyle C_{abcd}} (assumed non-zero, i.e., not of type O), the Bel criteria may be stated as: C a b c d {\displaystyle C_{abcd}} is type N if and
Petrov_classification
1973 film by George Lucas
John, and Toad) storylines were always presented in the same sequence (an "ABCD" plot structure). The first cut of American Graffiti was three and a half
American_Graffiti
Social unit which shares commonality
Mobilizing Local Assets and Your Organization's Capacity. ABCD Institute. 2006. Welcome to ABCD Archived 2000-08-19 at the Wayback Machine. Lutfiyya, Z
Community
economics topics list of architecture topics list of political science topics ABCD Region: An industrial region made up of seven municipalities with the greater
Index of urban studies articles
Index_of_urban_studies_articles
Historical term for Black people
changed: e.g. the Association for the Study of Negro Life and History (founded 1915) became the Association for the Study of Afro-American Life and History
Negro
Africa) a person or people of Indian heritage. American-Born Confused Desi, or ABCD (US) used by South-Asian diaspora for American-born South Asians, including
List of ethnic slurs and epithets by ethnicity
List_of_ethnic_slurs_and_epithets_by_ethnicity
American socialite (1891–1948)
(1933–1945) Montevideo Convention (1933) Second London Naval Treaty (1936) ABCD line (1940) Export Control Act Four Policemen Destroyers-for-bases deal Lend-Lease
Lucy_Mercer_Rutherfurd
Racial classification
from about 5%-35%) generally highest in the southwest of the island. A study of a sample of 96 healthy self-identified White Puerto Ricans and self-identified
Mulatto
Lim, Hermanto; Mead, David (2011). Chinese in Indonesia: A Background Study (PDF) (Report). SIL Electronic Survey Reports. SIL International. p. 5.
List_of_ethnic_slurs
American basketball player (born 1988)
Portland Elite Legends AAU team after he chose to participate in the Reebok ABCD Camp against other top recruits. He went on to play for the Southern California
Kevin_Love
Relatively continuous, non-sectional, or non-repetitive music
(ABA') rely on repetition, through-composed music does not re-use material (ABCD). This constant introduction of new material is most noticeable in musical
Through-composed_music
Quadrilateral with sides of equal length
quadrilateral ABCD possessing a point P in its plane such that the four triangles ABP, BCP, CDP, and DAP are all congruent a quadrilateral ABCD in which the
Rhombus
System to prevent email fraud
instead specifies a Tree Walk through the parent domains. So, for example, "a.b.c.d.example.com.au" and "example.com.au" have the same Organizational Domain
DMARC
Text-string-oriented programming language
simple or extremely complex. A simple pattern is just a text string (e.g. "ABCD"), but a complex pattern may be a large structure describing, for example
SNOBOL
President of the United States from 1881 to 1885
dispatch-steamer (Dolphin), collectively known as the ABCD Ships or the Squadron of Evolution. The contracts to build the ABCD ships were all awarded to the low bidder
Chester_A._Arthur
Czech painter
College of Psychosocial Studies 2014. Del Curto, M. – Zemánková, T. (eds.), Art Brut Live: Mario del Curto – fotografie, Prague: abcd / Bern: Till Schaap
Luboš_Plný
Verse in the Quran
symmetrical structure, wherein units of text are arranged concentrically (ABCD/x/D’C’B’A’). The relationship between those units is one of identity: terms
Throne_Verse
Chinese national born in the US
terms include Nisei for Japanese Americans, American-Born Confused Desi (ABCD) for South Asian Americans, Generation Ñ for bilingual Latinos, Chicano for
American-born_Chinese
1930s programs of U.S. president Franklin D. Roosevelt
review study of the existing literature in the Journal of Economic Literature summarized the findings of the research as follows: The studies find that
New_Deal
South Korean rapper and singer (born 1977)
on TV." Psy was slated to star in a South Korean remake of the Hindi film ABCD: Any Body Can Dance, taking over the role of Vishnu (Prabhu Deva) in the
Psy
Mole in the skin with an abnormal appearance
the lesion is becoming malignant. The E is sometimes omitted, as in the ABCD guideline. A weakness in this system is the D.[citation needed] Many melanomas
Dysplastic_nevus
trumpets a little song. Kadal During the credits, "Anbin Vaasale" is sung. ABCD: Any Body Can Dance In a post-credits scene, "Psycho Re" is sung. Romans
List of films with post-credits scenes
List_of_films_with_post-credits_scenes
Theater of World War II
influenced by military propagandists, began to refer to the embargoes as the "ABCD line" ("American-British-Chinese-Dutch"). The Japanese Imperial General Headquarters
Pacific_War
Emperor of Japan from 1926 to 1989
Indochina and the Japanese war with China. These sanctions, part of an "ABCD Encirclement" aimed to halt Japanese expansion which were tightened into
Hirohito
Ethnic slur directed at Indians and South Asians
Politics of Anti-Indian Hate and Racism on Elon Musk's X". Center for the Study of Organized Hate. Retrieved 24 August 2025. NCRI, Anti-Hindu Disinformation
Pajeet
Structure of a piece of music
variation": it is simply an indefinite sequence of self-contained sections (ABCD...), sometimes with repeats (AABBCCDD...). The term "binary form" is used
Musical_form
inspired directly by him or have him as a central theme such as Munna Michael, ABCD: Any Body Can Dance and Donga. India's entertainment tax was waived by the
Cultural impact of Michael Jackson
Cultural_impact_of_Michael_Jackson
Condition characterized by absence of pigment
with albinism. Albinism can also be a feature alongside several syndromes: ABCD syndrome Albinism-hearing loss syndrome Chédiak–Higashi syndrome, in partial
Albinism_in_humans
Calculated number that reflects the level of risk in the presence of some risk factors
function to calculate mortality from the score) or a look-up table (e.g. ABCD² score or the ISM7 (NI) Scorecard). This practice makes the process of obtaining
Risk_score
American athletic equipment company
a study by Rakuten concluded that Nike was the most popular sportswear brand in the US, followed by Lululemon and Adidas. In July 2023, a study by Kantar
Nike,_Inc.
Application of informatics
for Structured Descriptive Data, and Access to Biological Collection Data (ABCD); while data retrieval and transfer protocols include DiGIR (now mostly superseded)
Biodiversity_informatics
President of Brazil (2003–2011; since 2023)
Union of São Bernardo do Campo and Diadema. Both cities are located in the ABCD Region, home to most of Brazil's automobile manufacturing facilities, including
Luiz_Inácio_Lula_da_Silva
Capital and largest city in Northern Ireland
Treasury as "key fintech [financial technology] hub". Fintech's key areas (its "ABCD") are artificial intelligence, blockchain, cloud computing, and big data
Belfast
English composer and conductor (born 1945)
Bach Choir, and President of the Association of British Choral Directors (ABCD). Rutter resides at Hemingford Abbots in Cambridgeshire. Rutter's compositions
John_Rutter
Most populous city in Brazil
mainly for athletics. Brazil portal South America portal Geography portal ABCD Region São Paulo (song) Japanese cuisine in São Paulo Large Cities Climate
São_Paulo
1999 Indian film by Sooraj Barjatya
Raamlaxman". Rediff.com. 24 May 2021. Retrieved 22 September 2022. "The 'ABCD' Song from 'Hum Saath-Saath Hain' is Actually Stolen from a Spanish Song"
Hum_Saath-Saath_Hain
On triangles inscribed in a circle with a diameter as an edge
s. (It has not been proven that D lies on the circle.) The quadrilateral ABCD forms a parallelogram by construction (as opposite sides are parallel). Since
Thales's_theorem
Capital and most populous city of Argentina
Archived from the original on 2 March 2019. Retrieved 5 October 2018. "ABCD". Argentina.travel. Archived from the original on 24 September 2018. Retrieved
Buenos_Aires
IT Certification and Training company
CompTIA was created in 1982 as the Association of Better Computer Dealers (ABCD). ABCD later changed its name to the Computing Technology Industry Association
CompTIA
Argentinian choreographer
Ballet dancer and actor. In 2013 he appeared in Remo D'Souza's directorial ABCD: Any Body Can Dance. He is also founder and director of Imperial Fernando
Mario_Fernando_Aguilera
Ethnic slur for White people
Sangokujin Tai Ke (Benshengren) South Asians General American-Born Confused Desi (ABCD) Coconut (westernized South Asians) Coolie Wog Bengalis Bong Bongal Danchi
Peckerwood
American billionaire business magnate (born 1938)
will be housed at Stanford's Wu Tsai Neurosciences Institute and is set to study the cognitive decline and degenerative brain diseases such as Parkinson's
Phil_Knight
Private community college in Massachusetts, U.S.
programs in 11 other areas. In 1967 Action for Boston Community Development (ABCD) started the Urban College Program to meet the educational, employment and
Urban_College_of_Boston
Chemical group of natural compounds
consists of fused indole and quinolizidine systems that are divided into ABCD rings, which can be complicated by additional carbocycles. Classic examples
Indoloquinolizidine_alkaloids
Solution of Einstein field equations
R a b c d ⋆ R a b c d = 0. {\displaystyle R_{abcd}\,R^{abcd}=12\omega ^{4},\;R_{abcd}{{}^{\star }R}^{abcd}=0.} The vanishing of the second invariant means
Gödel_metric
American basketball player and coach (born 1973)
03 m) center attended the Nike Academic Betterment and Career Development (ABCD) camp, which was held annually in Princeton, New Jersey, during the late
Juwan_Howard
American professor of cognitive science (born 1945)
Italy. Hofstadter's 2025 book Ambigrammia Between Creation and Discovery ("ABCD") presents hundreds of his hand-crafted ambigrams in English, as well as
Douglas_Hofstadter
Medical condition
Mohammed (2013). "Pediatric melanoma: Results of a large cohort study and proposal for modified ABCD detection criteria for children". Journal of the American
Amelanotic_melanoma
Luxury fashion house
marble countertops, chainmail curtains, and a lime-colored Pierre Paulin ABCD sofa on the lower level. Levy described the space as "a mixture of a bank
Enfants_Riches_Déprimés
United States social health care program
In Washington state, a program called Access to Baby and Child Dentistry (ABCD) has helped increase access to dental services by providing dentists higher
Medicaid
only a year and a half during peacetime and much less during wartime, the ABCD line left Japan two choices: comply with the US-led demand to pull out of
Causes_of_World_War_II
Frequency response curves used in sound pressure level measurement
1966 IEEE Article Comparison of some loudness measures for loudspeaker listening tests (Aarts, JAES, 1992) PDF containing algorithm for ABCD filters
A-weighting
Protozoan parasitic disease
Truyen U, Horzinek MC (July 2013). "Toxoplasma gondii infection in cats: ABCD guidelines on prevention and management". Journal of Feline Medicine and
Toxoplasmosis
American musician
In 2012, he released Picture This as a free download. It was followed by ABCD in 2013. His self-titled album, Moodymann, was released in 2014. He released
Moodymann
Mathematical model of the physical space
a right angle. Ptolemy's theorem states that for a cyclic quadrilateral ABCD, AC·BD = AB·CD + BC·DA. The five Platonic solids, whose classification forms
Euclidean_geometry
Want WeWorld Welfare Association R C, AC, AE C, K, H Collective statement: ABCD Bethlehem Access Center for Human Rights ALEF - Act for Human Rights Alternatives
List of humanitarian and human rights groups accusing Israel of genocide in Gaza
List_of_humanitarian_and_human_rights_groups_accusing_Israel_of_genocide_in_Gaza
Branch of pharmacology
PMID 17630642. Doogue, Matthew P.; Polasek, Thomas M. (February 2013). "The ABCD of clinical pharmacokinetics". Therapeutic Advances in Drug Safety. 4 (1):
Pharmacokinetics
ABCD STUDY
ABCD STUDY
Boy/Male
Indian
Worshipper
Boy/Male
Muslim Arabic
Worshipper. Adorer.
Boy/Male
Indian
Is derived from Abd, A Man
Boy/Male
Arabic, Australian, Farsi, German, Indian, Kannada, Muslim, Pashtun, Punjabi, Sikh, Sindhi
Worshipper of Allah; Spark of Fire; Worshipper of God
Boy/Male
Indian
Pl of Abid i.e. worshipper
Boy/Male
Muslim/Islamic
Worshipper
Boy/Male
Muslim
Is derived from Abd, A Man
Boy/Male
Muslim
Pl of Abid i.e. worshipper
Boy/Male
Arabic, Hebrew, Parsi
Everlasting; Eternal; Father; Populated; Flourishing Inhabited; Happy; Prosperous
Boy/Male
Indian
Khayr is all kinds of goodness
Boy/Male
Indian
Servant, Devotee, Slave
Boy/Male
Indian
Worshipper of God
Boy/Male
Muslim
Servant, Devotee, Slave
Boy/Male
Indian
Abd manaaf
Boy/Male
Arabic, Muslim
Goodness; Happiness
Boy/Male
Muslim
Khayr is all kinds of goodness
Boy/Male
African, Indian
Slave; Servant
Boy/Male
Afghan, Arabic, Indian, Kannada, Muslim
Worshipper; Adorer
Girl/Female
Indian, Kannada, Sindhi
Worshiper
Boy/Male
Muslim
Abd manaaf
ABCD STUDY
ABCD STUDY
Boy/Male
English American
Cart driver, cart maker. A surname sometimes used as a first name.
Surname or Lastname
English
English : topographic name from Old English hamm, denoting a patch of flat, low-lying alluvial land beside a stream (often a promontory or water meadow in a river bend), or a habitational name from any of numerous places named with this word, for example in Gloucestershire, Greater London, Kent, Somerset, and Wiltshire.German : topographic name for someone who lived on land in a river bend, Old High German ham (see 1 above).German and Jewish (Ashkenazic) : habitational name from Hamm, a city in Westphalia.
Girl/Female
French American
Feminine of Charles meaning manly.
Boy/Male
Irish
Swift.
Boy/Male
Gujarati, Indian, Jain, Marathi
Lotus Stack
Girl/Female
Hindu, Indian
Goddess Durga
Girl/Female
Arabic
Neat and Clean
Girl/Female
Muslim
Rareness
Girl/Female
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Sindhi, Tamil, Telugu
Earth; The Earth
Boy/Male
Indian, Sanskrit
Of the Body; Corporeal; Lord Shiva
ABCD STUDY
ABCD STUDY
ABCD STUDY
ABCD STUDY
ABCD STUDY
n.
A discourse or treatise on the heavens and the heavenly bodies; the study of the heavens; uranography.
a.
Empty of thought; thoughtless; not occupied with study or reflection; as, a vacant mind.
n.
One who indulges in lying abed; a sluggard.
v. i.
A building or apartment devoted to study or to literary work.
adv.
To childbed (in the phrase "brought abed," that is, delivered of a child).
n.
One devoted, consecrated, or engaged by a vow or promise; hence, especially, one devoted, given, or addicted, to some particular service, worship, study, or state of life.
v. t.
To apply the mind to; to read and examine for the purpose of learning and understanding; as, to study law or theology; to study languages.
a.
Far in the night, day, week, or other particular period; as, to lie abed late; to sit up late at night.
n.
An art or study affected by virtuosos.
v. t.
To form or arrange by previous thought; to con over, as in committing to memory; as, to study a speech.
v. t.
To consider attentively; to examine closely; as, to study the work of nature.
p. pr. & vb. n.
of Study
adv.
In bed, or on the bed.
v. i.
A representation or rendering of any object or scene intended, not for exhibition as an original work of art, but for the information, instruction, or assistance of the maker; as, a study of heads or of hands for a figure picture.
a.
Acquainted or familiar, as the result of experience, study, practice, etc.; skilled; practiced.
v. i.
To strike about with something broad abd flat, as a fish with its tail, or a bird with its wings; to rise and fall; as, the brim of a hat flops.
n.
A figure, somewhat hatched-shaped, bounded by a semicircle and two inverted quadrants, and equal in area to the square ABCD inclosed by the chords of the four quadrants.
v. t.
To make an object of study; to aim at sedulously; to devote one's thoughts to; as, to study the welfare of others; to study variety in composition.