/ Dictionary / Index C cognitive psychology: Meaning and Definition of Find definitions for: cog'nitive psychol'ogy Pronunciation: [key] the branch of psychology studying the mental processes involved in perception, learning, memory, and reasoning. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cognitive dissonance cognitive science Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language