clavated

from The Collaborative International Dictionary of English v.0.48

Clavate \Cla"vate\, Clavated \Cla"va*ted\, a. [L. clava club.]
   (Bot. & Zool.)
   Club-shaped; having the form of a club; growing gradually
   thicker toward the top.

   Note: [See Illust. of {Antennae}.]
         [1913 Webster]