'Toothache grass' definitions:

Definition of 'Toothache grass'

From: GCIDE
  • Toothache \Tooth"ache`\, n. (Med.) Pain in a tooth or in the teeth; odontalgia. [1913 Webster]
  • 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). [1913 Webster]