/ Dictionary / Index W whaleback: Meaning and Definition of Find definitions for: whale•back Pronunciation: (hwāl'bak", wāl'-), [key] — n. a cargo vessel having a hull with a convex deck. a deck or cover curving upward. something shaped like the back of a whale, as a rounded hill or an ocean wave. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. whale whaleboat Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language