(1):

(n.) Part of a helmet projecting to protect the nose; a nose guard.

(2):

(a.) Having a quality imparted by means of the nose; and specifically, made by lowering the soft palate, in some cases with closure of the oral passage, the voice thus issuing (wholly or partially) through the nose, as in the consonants m, n, ng (see Guide to Pronunciation, // 20, 208); characterized by resonance in the nasal passage; as, a nasal vowel; a nasal utterance.

(3):

(n.) One of the nasal bones.

(4):

(n.) A medicine that operates through the nose; an errhine.

(5):

(n.) A plate, or scale, on the nose of a fish, etc.

(6):

(n.) An elementary sound which is uttered through the nose, or through both the nose and the mouth simultaneously.

(7):

(a.) Of or pertaining to the nose.