/ Dictionary / Index C cannula: Meaning and Definition of Find definitions for: can•nu•la Pronunciation: (kan'yu-lu), [key] — pl. -las, -lae a metal tube for insertion into the body to draw off fluid or to introduce medication. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cannula (Thesaurus) cannot cannular Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language