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 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