cercus: Meaning and Definition of

cer•cus

Pronunciation: (sûr'kus, ker'-), [key]
— pl. cer•ci
  1. one of a pair of appendages at the rear of the abdomen of certain insects and other arthropods, serving as tactile organs.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.