cephalothorax

from The Collaborative International Dictionary of English v.0.48
Cephalothorax \Ceph`a*lo*tho"rax\, n. [Cephalo- + thorax.]
   (Zool.)
   The anterior portion of any one of the Arachnida and higher
   Crustacea, consisting of the united head and thorax.
   [1913 Webster]
    

[email protected]