Source : Webster's Revised Unabridged Dictionary (1913)

Toothwort \Tooth"wort`\, n. (Bot.)
   A plant whose roots are fancied to resemble teeth, as certain
   plants of the genus {Lathr[ae]a}, and various species of
   {Dentaria}. See {Coralwort}.

Source : WordNet®

toothwort
     n : North American herb with pungent scaly or toothed roots
         [syn: {crinkleroot}, {crinkle-root}, {crinkle root}, {pepper
         root}, {Cardamine diphylla}, {Dentaria diphylla}]