Nasal  —adj. 1 of the nose. 2 (of a letter or a sound) pronounced with the breath passing through the nose, e.g. M, n, ng. 3 (of the voice or speech) having many nasal sounds. —n. Nasal letter or sound.  nasalize v. (also -ise) (-zing or -sing). Nasally adv. [latin nasus nose]