nose guard

from The Collaborative International Dictionary of English v.0.48
Nasal \Na"sal\, n.
   1. An elementary sound which is uttered through the nose, or
      through both the nose and the mouth simultaneously.
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   2. (Med.) A medicine that operates through the nose; an
      errhine. [Archaic]
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   3. (Anc. Armor) Part of a helmet projecting to protect the
      nose; a {nose guard}.
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   4. (Anat.) One of the nasal bones.
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   5. (Zool.) A plate, or scale, on the nose of a fish, etc.
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