/ Dictionary / Index N nasal: Meaning and Definition of Find definitions for: na•sal Pronunciation: (nā'zul), [key] — adj. of or pertaining to the nose: the nasal cavity. pronounced with the voice issuing through the nose, either partly, as in French nasal vowels, or entirely (as in m, n, or the ng of song). —n. a nasal speech sound. na•sal Pronunciation: (nā'zul), [key] — n. Armor. a bar or narrow plate used with an open helmet as a defense for the nose. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nasal (Thesaurus) NASA nasal concha Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language