/ Dictionary / Index P proctoclysis: Meaning and Definition of Find definitions for: proc•toc•ly•sis Pronunciation: (prok-tok'lu-sis), [key] — n. Med. the slow, continuous introduction of a solution into the rectum to improve fluid intake. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. procto proctodaeum 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