/ Dictionary / Index A ampule: Meaning and Definition of Find definitions for: am•pule Pronunciation: (am'pyl, -pl), [key] — n. Med. a sealed glass or plastic bulb containing solutions for hypodermic injection. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ampule (Thesaurus) amply ampulla Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language