/ Dictionary / Index P proctoscope: Meaning and Definition of Find definitions for: proc•to•scope Pronunciation: (prok'tu-skōp"), [key] — n. an instrument for visual examination of the interior of the rectum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: proctoscope (Thesaurus) proctor proctoscopy 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