/ Dictionary / Index S sea lyme grass: Meaning and Definition of Find definitions for: sea' lyme" grass" Pronunciation: [key] a stout grass, Elymus arenarius, of Eurasia, used as a binder for shifting sand. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sealyham terrier seam Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language