First Known Use: 1653
Dictionary
psychology
noun psy·chol·o·gy \-jē\
: the science or study of the mind and behavior
: the way a person or group thinks
plural psy·chol·o·gies
Full Definition of PSYCHOLOGY
1
: the science of mind and behavior
2
a : the mental or behavioral characteristics of an individual or group b : the study of mind and behavior in relation to a particular field of knowledge or activity
3
: a theory or system of psychology <Freudian psychology> <the psychology of Jung>
— psy·chol·o·gist \-jist\ noun
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Origin of PSYCHOLOGY
New Latin psychologia, from psych- + -logia -logy
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Rhymes with PSYCHOLOGY
andrology, anthology, apology, astrology, biology, bryology, cetology, Christology, chronology, conchology, cosmology, cryptology, cytology, dendrology, doxology, ecology, enology, ethnology, ethology, fetology, garbology, gemology, geology, graphology, haplology, histology, homology, horology, hydrology, hymnology, Indology, limnology, lithology, mixology, morphology, mycology, myology, mythology, necrology, nephrology, neurology, nosology, oncology, ontology, oology, pathology, pedology, penology, petrology, phlebology, phonology, phrenology, phycology, proctology, scatology, seismology, serology, sexology, sinology, symbology, tautology, technology, tetralogy, theology, topology, trichology, typology, ufology, urology, virology, zoology
PSYCHOLOGY Defined for Kids
psychology
noun psy·chol·o·gy \sī-ˈkä-lə-jē\
Definition of PSYCHOLOGY for Kids
: the science that studies the mind and behavior
Medical Dictionary
psychology
noun psy·chol·o·gy \-jē\
plural psy·chol·o·gies
Medical Definition of PSYCHOLOGY
1
: the science of mind and behavior
2
a : the mental or behavioral characteristics typical of an individual or group or a particular form of behavior <mob psychology> <the psychology of arson> b : the study of mind and behavior in relation to a particular field of knowledge or activity <color psychology> <the psychology of learning>
3
: a treatise on or a school, system, or branch of psychology
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