Main Entry:

psy·chol·o·gy

Pronunciation:

\-jē\

Function:

noun

Inflected Form(s):

plural psy·chol·o·gies

Etymology:

New Latin psychologia, from psych- + -logia -logy

Date:

1653

1: the science of mind and behavior2 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 activity3: a theory or system of psychology <Freudian psychology> <the psychology of Jung>

— psy·chol·o·gist \-jist\ noun