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Ctenium Americanum

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Toothache \Tooth"ache`\, n. (Med.)
   Pain in a tooth or in the teeth; odontalgia.

   {Toothache grass} (Bot.), a kind of grass ({Ctenium
      Americanum}) having a very pungent taste.

   {Toothache tree}. (Bot.)
   (a) The prickly ash.
   (b) A shrub of the genus {Aralia} ({A. spinosa}).
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