nasal

Concise Oxford English Dictionary © 2008 Oxford University Press:
nasal /ˈneɪz(ə)l/

▶adjective

• 1 relating to the nose.

• 2 (of a speech sound) pronounced by the breath resonating in the nose, e.g. m, n, ng, or French en, un.

  ■ (of speech) characterized by resonance in the nose as well as the mouth.

▶noun

• 1 a nasal speech sound.

• 2 historical a nosepiece on a helmet.

– derivatives
nasality noun,
nasally adverb.

– origin ME: from med. L. nasalis, from L. nasus ‘nose’.