/ Dictionary / Index R rectal: Meaning and Definition of Find definitions for: rec•tal Pronunciation: (rek'tl), [key] — adj. of, pertaining to, or for the rectum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rectal (Thesaurus) recta rectangle Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language