/ Dictionary / Index L labial: Meaning and Definition of Find definitions for: la•bi•al Pronunciation: (lā'bē-ul), [key] — adj. of, pertaining to, or resembling a labium. of or pertaining to the lips. involving lip articulation, as p, v, m, w, or a rounded vowel. having the tones produced by the impact of a stream of air on a sharp liplike edge, as in a flute or the flue pipes of an organ. —n. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: labial (Thesaurus) labia labialism Related Content Daily Word Quiz: slough Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language