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psychology definition

psy·chol·ogy (sī käl′ə jē)

noun pl. psychologies -·gies

    1. the science dealing with the mind and with mental and emotional processes
    2. the science of human and animal behavior
  2. the sum of the actions, traits, attitudes, thoughts, mental states, etc. of a person or group the psychology of the adolescent
  3. a particular system of psychology

Etymology: ModL psychologia: see psycho- & -logy

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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