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).