/ Dictionary / Index P physiological: Meaning and Definition of Find definitions for: phys•i•o•log•i•cal Pronunciation: (fiz"ē-u-loj'i-kul), [key] — adj. of or pertaining to physiology. consistent with the normal functioning of an organism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: physiological (Thesaurus) physiol. physiological atmosphere 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