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Topics referred to by the same term
Look up PSI, Psi, or psi in Wiktionary, the free dictionary. Psi, PSI or Ψ may refer to: Psi (Greek) (Ψ or ψ), the twenty-third letter of the Greek alphabet
Psi
Penultimate letter in the Greek alphabet
Psi /ˈ(p)saɪ, ˈ(p)siː/ (P)SY, (P)SEE (uppercase Ψ, lowercase ψ or 𝛙; Greek: ψι psi [ˈpsi]) is the twenty-third and penultimate letter of the Greek alphabet
Psi_(Greek)
Unit of pressure or stress
The pound per square inch (abbreviation: psi) or, more accurately, pound-force per square inch (symbol: lbf/in2), is a unit of measurement of pressure
Pound_per_square_inch
Parapsychological result more than that expected by chance
Psi hit and psi miss are terms used in discussion of parapsychological experimentation to describe the success or failure of the subject in achieving
Psi_hit
North American sorority
Psi Psi Psi (ΨΨΨ), also known as Tri Psi, is a North American sorority for the mothers of members of the collegiate sorority Delta Delta Delta. Tri Psi
Psi_Psi_Psi
International historically Black fraternity
Kappa Alpha Psi Fraternity, Inc. (ΚΑΨ) is a historically African American fraternity. Since the fraternity's founding on January 5, 1911, at Indiana University
Kappa_Alpha_Psi
International historically African American collegiate fraternity
Omega Psi Phi Fraternity, Inc. (ΩΨΦ) is an international historically African-American social fraternity. It was founded on November 17, 1911 at Howard
Omega_Psi_Phi
North American collegiate fraternity
Psi Upsilon (ΨΥ), commonly known as Psi U, is a North American fraternity, founded at Union College on November 24, 1833. The fraternity has chartered
Psi_Upsilon
Topics referred to by the same term
Psi function can refer, in mathematics, to the ordinal collapsing function ψ ( α ) {\displaystyle \psi (\alpha )} the Dedekind psi function ψ ( n ) {\displaystyle
Psi_function
Description of physical properties at the atomic and subatomic scale
{\displaystyle \psi _{u}={\begin{pmatrix}0\\1\end{pmatrix}}} , that is, ψ = α ψ l + β ψ u {\displaystyle \psi =\alpha \psi _{l}+\beta \psi _{u}} for complex
Quantum_mechanics
Portuguese stock market index
The PSI-20 (an acronym of Portuguese Stock Index) is a benchmark stock market index of companies that trade on Euronext Lisbon, the main stock exchange
PSI-20
American collegiate fraternity
Phi Kappa Psi (ΦΚΨ), commonly known as Phi Psi, is an American collegiate social fraternity that was founded at Jefferson College in Canonsburg, Pennsylvania
Phi_Kappa_Psi
Star in the constellation Leo
ψ Leonis (Latinised as Psi Leonis, abbreviated to ψ Leo or Psi Leo), is a solitary star located in the zodiac constellation of Leo, to the east-northeast
Psi_Leonis
Study of paranormal and psychic phenomena
Association divides psi into two main categories: psi-gamma for extrasensory perception and psi-kappa for psychokinesis. In popular culture, "psi" has become
Parapsychology
Italian political party
officially called Unified PSI–PSDI (PSI–PSDI Unificati), was the name of the federation of parties formed by the Italian Socialist Party (PSI) and the Italian
Unified Socialist Party (Italy)
Unified_Socialist_Party_(Italy)
College student honor society in psychology
Psi Chi (ΨΧ) is a college student honor society in psychology with international outreach founded in 1929 at the University of Kansas in the United States
Psi_Chi
Description of a quantum-mechanical system
{1}{2m}}\left(\Psi ^{*}{\hat {\mathbf {p} }}\Psi -\Psi {\hat {\mathbf {p} }}\Psi ^{*}\right)=-{\frac {i\hbar }{2m}}(\psi ^{*}\nabla \psi -\psi \nabla \psi ^{*})={\frac
Schrödinger_equation
Political party that existed in Italy from 1892 to 1994
The Italian Socialist Party (Italian: Partito Socialista Italiano, PSI) was a social democratic and democratic socialist political party in Italy, whose
Italian_Socialist_Party
2004 video game
Psi-Ops: The Mindgate Conspiracy is a 2004 action-adventure video game developed by Midway for the Xbox, PlayStation 2, and Microsoft Windows. The game
Psi-Ops: The Mindgate Conspiracy
Psi-Ops:_The_Mindgate_Conspiracy
Foundational principle in quantum physics
{B}}\rangle )\Psi \rangle \\[4pt]&=\langle \Psi \mid {\hat {A}}{\hat {B}}\Psi \rangle -\langle \Psi \mid {\hat {A}}\langle {\hat {B}}\rangle \Psi \rangle -\langle
Uncertainty_principle
International collegiate fraternity
Zeta Psi (ΖΨ) is an international collegiate fraternity. It was founded in 1847 at New York University. The fraternity has over 100 chapters, with roughly
Zeta_Psi
Canadian science fiction drama television series
Psi Factor: Chronicles of the Paranormal /ˈpsaɪ/ is a Canadian science fiction drama television series which was filmed in and around Toronto, Ontario
Psi_Factor
2023 Canadian TV series or program
Psi Cops (French: Psi Cops: Escouade Paranormale) is a Canadian adult animated television series that premiered on Adult Swim in Canada on June 5, 2023
Psi_Cops
Psychology theory
Psi-theory, developed by Dietrich Dörner at the University of Bamberg, is a systemic psychological theory covering human action regulation, intention
Psi-theory
Swiss federal research institute
The Paul Scherrer Institute (PSI) is a multi-disciplinary research institute for natural and engineering sciences in Switzerland. It is located in the
Paul_Scherrer_Institute
Technique in quantum computation
| U | ψ ⟩ {\displaystyle \mathrm {Re} \langle \psi |U|\psi \rangle } , where | ψ ⟩ {\displaystyle |\psi \rangle } is a quantum state and U {\displaystyle
Hadamard_test
Index of articles associated with the same name
The Bayer designation Psi Aurigae (ψ Aur, ψ Aurigae) is shared by nine star systems in the constellation Auriga and one in Lynx: ψ1 Aurigae = 46 Aurigae
Psi_Aurigae
Topics referred to by the same term
PSIS may refer to: Posterior superior iliac spine, part of the human hip bone Pituitary stalk interruption syndrome, a birth disorder affecting the pituitary
PSIS
Philippine semiconductor company
PSi Technologies provides power semiconductor assembly and test services to the power semiconductor market. It offers assembly services for power conversion
PSi_Technologies
Buchholz's psi-functions are a hierarchy of single-argument ordinal functions ψ ν ( α ) {\displaystyle \psi _{\nu }(\alpha )} introduced by German mathematician
Buchholz_psi_functions
Probability distribution
}\\[4pt]&=(\psi _{1}(\alpha )-\psi _{1}(\alpha +\beta ))(\psi _{1}(\beta )-\psi _{1}(\alpha +\beta ))-(-\psi _{1}(\alpha +\beta ))(-\psi _{1}(\alpha +\beta
Beta_distribution
Index of articles associated with the same name
Psi Piscium (ψ Psc, ψ Piscium) is shared by three star systems in the constellation Pisces: Psi¹ Piscium (74 Piscium) Psi² Piscium (79 Piscium) Psi³
Psi_Piscium
Device used in attempts to prove telekinesis
A psi wheel is pyramid-shaped top-like device consisting of a small piece of paper or foil balanced on the tip of a pointed object (such as a toothpick
Psi_wheel
Type of psychological relationship
interaction (PSI) refers to a kind of psychological relationship experienced by an audience in their mediated encounters with performers in mass media. PSI is described
Parasocial_interaction
Notation for quantum states
|\psi \rangle \doteq {\begin{pmatrix}a_{\psi }\\b_{\psi }\end{pmatrix}}\quad {\text{or}}\quad |\psi \rangle \doteq {\begin{pmatrix}c_{\psi }\\d_{\psi }\end{pmatrix}}}
Bra–ket_notation
American collegiate fraternity
Chi Psi (ΧΨ) is a fraternity consisting of active chapters at 34 American colleges and universities. Chi Psi was founded in 1841 at Union College in Schenectady
Chi_Psi
Japanese manga series and its adaptations
light novel titled Saiki Kusuo no Psi-nan - Extra Story of Psychics was released, following with Saiki Kusuo no Psi-nan - Extra Story of Psychics 2 in
The Disastrous Life of Saiki K.
The_Disastrous_Life_of_Saiki_K.
Science fiction theme of 1950s and 1960s
extrasensory perception, telepathy and psychokinesis. The term is a blend word of psi (in the sense of "psychic phenomena") and the -onics from electronics. The
Psionics
Comics character
Psi (Gayle Marsh) is a supervillain appearing in American comic books published by DC Comics, primarily as an enemy of Supergirl. She was created by Paul
Psi_(comics)
Mathematical description of quantum state
for a wave function are the Greek letters ψ and Ψ (lower-case and capital psi, respectively). According to the superposition principle of quantum mechanics
Wave_function
consultant) Psi-Man 1: Mind-Force Warrior (1990) Psi-Man 2: Deathscape (1991) Psi-Man 3: Main Street D.O.A. (1991) Psi-Man 4: The Chaos Kid (1991) Psi-Man 5:
Psi-Man
Principle of quantum mechanics
0 ⟩ + c 1 | 1 ⟩ , {\displaystyle |\Psi \rangle =c_{0}|0\rangle +c_{1}|1\rangle ,} where | Ψ ⟩ {\displaystyle |\Psi \rangle } is the quantum state of the
Quantum_superposition
American professional development company
PSI Seminars is a private company that offers large-group awareness training (LGAT) seminars for professional and personal development. Programs are held
PSI_Seminars
National honor society for neuroscience
Nu Rho Psi (ΝΡΨ or NRP) is an American honor society for neuroscience. It was founded in 2006 by the Faculty for Undergraduate Neuroscience and now an
Nu_Rho_Psi
Relativistic quantum mechanical wave equation
wavefunction ψ = ( ψ 1 , ψ 2 , ψ 3 , ψ 4 ) {\displaystyle \psi =(\psi _{1},\psi _{2},\psi _{3},\psi _{4})} . Such a proposal was much more bold than Pauli's
Dirac_equation
Mathematical function relating circular and hyperbolic functions
angle measure ψ {\textstyle \psi } to a circular angle measure ϕ {\textstyle \phi } called the gudermannian of ψ {\textstyle \psi } and denoted gd ψ {\textstyle
Gudermannian_function
Arithmetical function
Dedekind psi function is the multiplicative function on the positive integers defined by ψ ( n ) = n ∏ p | n ( 1 + 1 p ) , {\displaystyle \psi (n)=n\prod
Dedekind_psi_function
American post-punk band
Psi Com was an American post-punk band of the early 1980s, consisting of Perry Farrell (vocals), Aaron Sherer (drums and percussion), Vince Duran (guitar)
Psi_Com
Star in the constellation Cassiopeia
Psi Cassiopeiae is a binary star system in the northern constellation of Cassiopeia. Its name is a Bayer designation that is Latinized from ψ Cassiopeiae
Psi_Cassiopeiae
Marvel Comics fictional character
with his teenage counterpart, Psi-Lord, who had been raised by Nathaniel in a dimension outside of time. Franklin, as Psi-Lord, founds the team Fantastic
Franklin_Richards_(character)
Centre to centre-left political party in Indonesia
The Indonesian Solidarity Party (Indonesian: Partai Solidaritas Indonesia, PSI) is a political party in Indonesia that focuses on women's rights, pluralism
Indonesian_Solidarity_Party
American college fraternity (1885–1895)
Phi Theta Psi (ΦΘΨ) was an American collegiate fraternity. It was established in 1886 at Washington and Lee University in Lexington, Virginia. The fraternity
Phi_Theta_Psi
crusade against the Psi Corps. Her actions led to a war in which rogue telepaths and non-telepaths fought the Psi Corps. The old Psi Corps was destroyed
List_of_Babylon_5_characters
Equilibrium equation
{\displaystyle {\frac {\partial ^{2}\psi }{\partial r^{2}}}-{\frac {1}{r}}{\frac {\partial \psi }{\partial r}}+{\frac {\partial ^{2}\psi }{\partial z^{2}}}=-\mu _{0}r^{2}{\frac
Grad–Shafranov_equation
Mathematical function
function: ψ ( z ) = d d z ln Γ ( z ) = Γ ′ ( z ) Γ ( z ) . {\displaystyle \psi (z)={\frac {d}{dz}}\ln \Gamma (z)={\frac {\Gamma '(z)}{\Gamma (z)}}.} It
Digamma_function
Numbers obtained by adding the two previous ones
^{n}-\left(1+\psi +\psi ^{2}+\dots +\psi ^{n}\right)\\&={\frac {\varphi ^{n+1}-1}{\varphi -1}}-{\frac {\psi ^{n+1}-1}{\psi -1}}\\&={\frac {\varphi ^{n+1}-1}{-\psi }}-{\frac
Fibonacci_sequence
American professional medicine fraternity
Theta Kappa Psi Medical Fraternity, Incorporated (ΘΚΨ) is a North American professional medical fraternity. As of 2025, it operates as an independent
Theta_Kappa_Psi
Thai-Scottish marine conservationist
Siranudh "Psi" Scott (Thai: สิรณัฐ "ทราย" สก๊อต) is a Thai and Scottish marine conservationist and former advisor to Athapol Charoenshunsa, the Director-General
Siranudh_Scott
American honor society for psychology
Psi Beta (ΨΒ) is a scholastic honor society that recognizes academic achievement among students in the field of Psychology at two-year colleges. It was
Psi_Beta
Number, approximately 1.46557
{\psi +1}{\psi ^{2}}}\\=\psi ^{2}-1&={\frac {\psi ^{7}+1}{\psi ^{7}-1}}\\\psi ^{4}-1&={\frac {\psi ^{2}+2}{\psi ^{2}-1}}\\\psi ^{6}-1&={\frac {\psi ^{2}+2}{\psi
Supergolden_ratio
Topics referred to by the same term
Phi Psi is an American collegiate professional engineering fraternity. Phi Psi may also refer to: Phi Kappa Psi, an American collegiate fraternity Dihedral
Phi_Psi
Subatomic particle made of a charm quark and antiquark
The J/ψ (J/psi) meson /ˈdʒeɪ ˈsaɪ ˈmiːzɒn/ is a subatomic particle, a flavor-neutral meson consisting of a charm quark and a charm antiquark. Mesons formed
J/psi_meson
Psi Upsilon is a North American college fraternity. Following is a list of some of the notable members of Psi Upsilon. Nathan Abbott (Dean of Stanford
List_of_Psi_Upsilon_members
Set-theoretic function
\psi (\alpha ),\psi (\alpha )^{\psi (\alpha )},\psi (\alpha )^{\psi (\alpha )^{\psi (\alpha )}},\ldots } If δ = ψ ( α ) {\displaystyle \delta =\psi (\alpha
Ordinal_collapsing_function
Psi Psi Psi, also known as Tri Psi, is a North American sorority for the mothers of members of the collegiate sorority Delta Delta Delta. In the following
List_of_Psi_Psi_Psi_chapters
Set of five scalars
scalars { Ψ 0 , Ψ 1 , Ψ 2 , Ψ 3 , Ψ 4 } {\displaystyle \{\Psi _{0},\Psi _{1},\Psi _{2},\Psi _{3},\Psi _{4}\}} which encode the ten independent components of
Weyl_scalar
Comic book series
Psi-Force is a comic book series created by Archie Goodwin and Walt Simonson and published by Marvel Comics under their New Universe imprint from 1986
Psi-Force
Pistol cartridge designed by J.M. Browning
relatively low maximum chamber pressure rating of 21,000 psi (140 MPa), compared to 35,000 psi (240 MPa) for both 9mm Parabellum and .40 S&W, which due
.45_ACP
Mathematical tool in quantum physics
{\textstyle \sum _{j}p_{j}\left|\psi _{j}\right\rangle \left\langle \psi _{j}\right|} for some states | ψ j ⟩ {\displaystyle \left|\psi _{j}\right\rangle } and
Density_matrix
Star in the constellation Eridanus
Psi Eridani is a star in the constellation Eridanus. Its name is a Bayer designation that is Latinized from ψ Eridani, and abbreviated Psi Eri or ψ Eri
Psi_Eridani
Dual to the Dirac spinor
{\displaystyle \psi ^{\dagger }\mapsto \psi ^{\dagger }\lambda ^{\dagger }.} Therefore, ψ † ψ {\displaystyle \psi ^{\dagger }\psi } is not a Lorentz
Dirac_adjoint
Unit of pressure defined as 101325 Pa
.. ... is equal to ... SI units 101.325 kPa US customary units 14.69595 psi 29.92126 inHg other metric units 1.013250 bar 760 mmHg
Standard_atmosphere_(unit)
Political party in Italy
The New Italian Socialist Party or New PSI (Italian: Nuovo Partito Socialista Italiano or Nuovo PSI, NPSI), more recently styled as Liberal Socialists
New_Italian_Socialist_Party
Theorem in vector calculus
{\displaystyle \psi :D\to \mathbb {R} ^{3}} is piecewise smooth at the neighborhood of D {\displaystyle D} , with Σ = ψ ( D ) {\displaystyle \Sigma =\psi (D)}
Stokes'_theorem
Chemical compound
PSI-6130 is an experimental treatment for hepatitis C. PSI-6130 is a member of a class of antiviral drugs known as nucleoside polymerase inhibitors that
PSI-6130
The PSI Comp 80 was a home computer sold by Powertran starting in 1979. It was sold in the form of a kit of parts for a cased single-board home computer
PSI_Comp_80
Theorem in quantum mechanics
ψ | ψ ⟩ . {\displaystyle E[\psi ,\lambda ]={\frac {\langle \psi |{\hat {H}}_{\lambda }|\psi \rangle }{\langle \psi |\psi \rangle }}.} The eigenvalues
Hellmann–Feynman_theorem
1985 video game
Psi-5 Trading Company (also rendered as Psi 5 Trading Company, PsiΨ5 Trading Company, Psi5 Trading Company and PSI-5 Trading Company) is a 1985 space trading
Psi-5_Trading_Company
Czech rock band
Psí vojáci was a Czech rock band from Prague, fronted by the singer, pianist, and songwriter Filip Topol, son of the playwright Josef Topol and brother
Psí_vojáci
American multicultural college sorority
Lambda Psi Delta Sorority, Inc. (ΛΨΔ) was a multicultural, community service-based Greek-lettered sorority founded on March 9, 1997. Lambda Psi Delta (referred
Lambda_Psi_Delta
US honor fraternity for band members
Kappa Kappa Psi National Honorary Band Fraternity (ΚΚΨ, colloquially referred to as KKPsi) is an honorary fraternity for college and university band members
Kappa_Kappa_Psi
Firearms cartridge
resulted in a muzzle velocity of 3,250 ft/s and a chamber pressure of 52,000 psi. In the spring of 1962, Remington submitted the specifications of the .223
.223_Remington
Mathematical function
{\displaystyle \psi _{1}(z)={\frac {d^{2}}{dz^{2}}}\ln \Gamma (z)} . It follows from this definition that ψ 1 ( z ) = d d z ψ ( z ) {\displaystyle \psi _{1}(z)={\frac
Trigamma_function
Topics referred to by the same term
Psi-missing may refer to: Psi hit, the parapsychological experimentation term Psi-missing (Mami Kawada song), the Opening Theme for the anime series Toaru
Psi-missing
Loss of quantum coherence
_{\text{before}}(\psi \to \phi )=\left|\langle \psi |\phi \rangle \right|^{2}=\left|\sum _{i}\psi _{i}^{*}\phi _{i}\right|^{2}=\sum _{i}|\psi _{i}^{*}\phi
Quantum_decoherence
In mathematics, Rathjen's ψ {\displaystyle \psi } psi function is an ordinal collapsing function developed by Michael Rathjen. It collapses weakly Mahlo
Rathjen's_psi_function
North American pharmaceutical fraternity
Kappa Psi Pharmaceutical Fraternity, Incorporated (ΚΨ) is the largest professional pharmaceutical fraternity in the world with more than 6,000 student
Kappa_Psi
Cyrillic letter
Psi (Ѱ, ѱ; italics: Ѱ ѱ) is a letter in the early Cyrillic alphabet, derived from the Greek letter of the same name (Ψ, ψ). It represents the sound /ps/
Psi_(Cyrillic)
American Pacific Islander fraternity
Alpha Psi Rho (ΑΨΡ), also known as APsiRho, is an Asian and Pacific Islander-interest fraternity founded at San Diego State University in 2000. It has
Alpha_Psi_Rho
Interpretation of quantum mechanics
{Im} \ln \psi (q,t)=\hbar \operatorname {Im} \left({\frac {\nabla _{k}\psi }{\psi }}\right)(q,t)={\frac {m_{k}\mathbf {j} _{k}}{\psi ^{*}\psi }}=\operatorname
De_Broglie–Bohm_theory
PSI Protein Classifier is a program generalizing the results of both successive and independent iterations of the PSI-BLAST program. PSI Protein Classifier
PSI_Protein_Classifier
American coed collegiate fraternity
St. Anthony Hall or the Fraternity of Delta Psi is an American fraternity and literary society. Its first chapter was founded at Columbia University on
St._Anthony_Hall
American South Asian-interest collegiate fraternity
Delta Epsilon Psi (ΔΕΨ) is a South Asian interest social and service fraternity located in the United States. Delta Epsilon Psi Fraternity, Inc. was founded
Delta_Epsilon_Psi
Claims of perceiving information by a 6th sense, the mind
worked largely in the laboratory, carefully defining terms such as ESP and psi (parapsychology) and designing experiments to test them. A simple set of
Extrasensory_perception
2008 single by Mami Kawada
"PSI-missing" is the sixth single released by the J-pop singer, Mami Kawada. This single was released on October 29, 2008, one year after the release
PSI-Missing
Identities involving spinor bilinears
}}\gamma ^{\mu }\psi \right)\left({\bar {\psi }}\gamma _{\mu }\chi \right)=\left({\bar {\chi }}\chi \right)\left({\bar {\psi }}\psi \right)-{\frac {1}{2}}\left({\bar
Fierz_identity
Zeta Psi is an international collegiate fraternity. It was founded in 1847 at New York University in New York City, New York. Each Zeta Psi chapter has
List_of_Zeta_Psi_chapters
Italian politician (1934–2000)
Italian Socialist Party (PSI) from 1976 to 1993, and the 45th prime minister of Italy from 1983 to 1987. He was the first PSI member to become prime minister
Bettino_Craxi
African American collegiate fraternity
W.I.N.E. Psi Phi (WΨΦ) was an African American collegiate fraternity. It was established at Howard University in 1959 as a non-exclusive alternative to
Wine_Psi_Phi
The Psi-Lords are a fictional team of superheroes from the Valiant Comics universe. The characters first appeared in the second volume of Rai and the
Psi_Lords
PSI
PSI
PSI
PSI
Boy/Male
German
Angel.
Surname or Lastname
English
English : topographic name for someone who lived by a castle or city gate, Middle English burgate, or a habitational name from a place named Burgate, from Old English burh-geat with the same meaning, examples of which are found in Hampshire, Suffolk, and Surrey.
Girl/Female
Biblical
Preparing, revenging, confirming.
Boy/Male
Indian
Heavens flower
Boy/Male
Arabic
Innovation
Girl/Female
Indian
Sage, Intelligence
Girl/Female
Hebrew American Greek Indian Latin Slavic
Bitter.
Girl/Female
Native American
Land.
Female
Slavic
(Даница) Slavic name DANICA means "morning star."
Surname or Lastname
English
English : variant of Willard.German : variant of Willhardt (see Willert).
PSI
PSI
PSI
PSI
PSI
n. pl.
The order of birds which comprises the parrots.
n.
The doctrine of the merely human existence of Christ.
a.
Of or pertaining to the parrots, or the Psittaci.
n.
In a general sense, any bird of the order Psittaci.
n.
Love of empty of empty talk or noise.
n.
Psilanthropy.
a.
Having young that are naked when hatched; psilopaedic; -- said of certain birds.
n.
A hydrous oxide of manganese, occurring in smooth, botryoidal forms, and massive, and having an iron-black or steel-gray color.
n.
A yellow pigment found in the feathers of certain parrots.
a.
Pertaining to, or embodying, psilanthropy. "A psilanthropic explanation."
a.
Having down upon the pterylae only; -- said of the young of certain birds.
n.
One of the Psittaci.
n. pl.
birds whose young at first have down on the pterylae only; -- called also Gymnopaedes.
n.
A tropical tree, or its fruit, of the genus Psidium. Two varieties are well known, the P. pyriferum, or white guava, and P. pomiferum, or red guava. The fruit or berry is shaped like a pomegranate, but is much smaller. It is somewhat astringent, but makes a delicious jelly.
n.
Any species of Psittacus, Chrysotis, Pionus, and other genera of the family Psittacidae, as distinguished from the parrakeets, macaws, and lories. They have a short rounded or even tail, and often a naked space on the cheeks. The gray parrot, or jako (P. erithacus) of Africa (see Jako), and the species of Amazon, or green, parrots (Chrysotis) of America, are examples. Many species, as cage birds, readily learn to imitate sounds, and to repeat words and phrases.
a.
Alt. of Psittacid
n.
One who believes that Christ was a mere man.
n.
An African parrot (Psittacus erithacus), very commonly kept as a cage bird; -- called also gray parrot.
n.
A superficial or narrow pretender to philosophy; a sham philosopher.