Source : Webster's Revised Unabridged Dictionary (1913)

Urocerata \U`ro*cer"a*ta\, n. pl. [NL., fr. Gr. ? tail + ?, ?,
   horn.] (Zo["o]l.)
   A division of boring Hymenoptera, including Tremex and allied
   genera. See Illust. of {Horntail}.