/ Dictionary / Index H heavy artillery: Meaning and Definition of Find definitions for: heav'y artil'lery Pronunciation: [key] guns and howitzers of large caliber. guns and howitzers of 155-mm caliber and larger. Cf. light artillery (def. 2), Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. heavy heavy-bearded Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language