/ Dictionary / Index P physiological psychology: Meaning and Definition of Find definitions for: physiolog'ical psychol'ogy Pronunciation: [key] the branch of psychology concerned with the relationship between the physical functioning of an organism and its behavior. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. physiological phonetics physiological salt solution Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language