Source : Webster's Revised Unabridged Dictionary (1913)

Xylotrya \Xy*lo"try*a\, n. [NL., fr. Gr. xy`lon wood + ? to rub,
   wear out.] (Zo["o]l.)
   A genus of marine bivalves closely allied to Teredo, and
   equally destructive to timber. One species ({Xylotrya
   fimbriata}) is very common on the Atlantic coast of the
   United States.