toothache : Idioms & Phrases
Toothache grass
(Bot.) , a kind of grass (Ctenium Americanum ) having a very pungent taste.
Webster 1913
Toothache tree
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noun small deciduous aromatic shrub (or tree) having spiny branches and yellowish flowers; eastern North America
Zanthoxylum americanum; Zanthoxylum fraxineum; sea ash.
WordNet
- .
(Bot.) (a) The prickly ash.(b) A shrub of the genusAralia (A. spinosa ).