Prickly ash Bot.,
1. A prickly shrub (Xanthoxylum Americanum) with yellowish flowers appearing with the leaves; also called toothache tree. All parts of the plant are pungent and aromatic. The southern species is Xanthoxylum Carolinianum. --Gray.
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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 (Aralia spinosa).
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toothache tree
n : small deciduous aromatic shrub (or tree) having spiny
branches and yellowish flowers; eastern North America
[syn: sea ash, Zanthoxylum americanum, Zanthoxylum
fraxineum]