any of various plants belonging to the genus Cynoglossum, of the borage family, esp. C. officinale, having coarse, tongue-shaped leaves, dull purple flowers, and prickly nutlets.
Origin: bef. 1000; ME; OE hundestunge, trans. of L cynoglōssos < Gk kynóglōssos, kynóglōsson (adj.) lit., dog-tongued
[houndz-tuhng] 
