/ Dictionary / Index S squill: Meaning and Definition of Find definitions for: squill Pronunciation: (skwil), [key] — n. the bulb of the sea onion, Urginea maritima, of the lily family, cut into thin slices and dried, and used in medicine chiefly as an expectorant. the plant itself. any related plant of the genus Scilla. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: squill (Thesaurus) squilgee squilla Related Content Daily Word Quiz: ounterfeit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language