/ Dictionary / Index P proctology: Meaning and Definition of Find definitions for: proc•tol•o•gy Pronunciation: (prok-tol'u-jē), [key] — n. the branch of medicine dealing with the rectum and anus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: proctology (Thesaurus) proctodeum proctor Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language