prothorax: Meaning and Definition of

pro•tho•rax

Pronunciation: (prō-thôr'aks, -thōr'-), [key]
— pl. -tho•rax•es, -tho•ra•ces
  1. the anterior division of the thorax of an insect, bearing the first pair of legs.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: