/ Dictionary / Index C cockleshell: Meaning and Definition of Find definitions for: cock•le•shell Pronunciation: (kok'ul-shel"), [key] — n. a shell of the cockle. a shell of some other mollusk, as the scallop. any light or frail vessel. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cockleshell (Thesaurus) cocklebur cockloft Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language