Na·sal, n.
1. An elementary sound which is uttered through the nose, or through both the nose and the mouth simultaneously.
2. Med. A medicine that operates through the nose; an errhine. [Archaic]
3. Anc. Armor Part of a helmet projecting to protect the nose; a nose guard.
4. Anat. One of the nasal bones.
5. Zool. A plate, or scale, on the nose of a fish, etc.
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