/ Dictionary / Index S shell back: Meaning and Definition of Find definitions for: shell' back" Pronunciation: [key] an underside of a spoon bowl ornamented with a shell motif. shell•back Pronunciation: (shel'bak"), [key] — n. an old sailor. a person who has crossed the equator by boat. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. shellacking shellbark Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language