/ Dictionary / Index S sublingual: Meaning and Definition of Find definitions for: sub•lin•gual Pronunciation: (sub-ling'gwul), [key] — Anat. Anat. —adj. situated under the tongue, or on the underside of the tongue. —n. a sublingual gland, artery, or the like. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sublingual (Thesaurus) sublimity subliterate Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language