/ Dictionary / Index S shellproof: Meaning and Definition of Find definitions for: shell•proof Pronunciation: (shel'prf"), [key] — adj. protected against the explosive effect of shells or bombs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: shellproof (Thesaurus) shell pink shell shock Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language