Horntail

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Horntail \Horn"tail`\, n. (Zool.)
     Any one of family ({Urocerid[ae]}) of large hymenopterous
     insects, allied to the sawflies. The larv[ae] bore in the
     wood of trees. So called from the long, stout ovipositors of
     the females.
     [1913 Webster]