Source : Webster's Revised Unabridged Dictionary (1913)

Coralwort \Cor"al*wort`\, n. (Bot.)
   A cruciferous herb of certain species of {Dentaria}; --
   called also {toothwort}, {tooth violet}, or {pepper root}.

Source : WordNet®

coralwort
     n : European bittercress having a knotted white rootstock [syn:
         {coral-root bittercress}, {coralroot}, {Cardamine
         bulbifera}, {Dentaria bulbifera}]