noun, plural cer·ci [sur-sahy, ker-kee] /ˈsɜr saɪ, ˈkɛr ki/.
Origin of cercus
Examples from the Web for cerci
The cerci appear to have been long, slender, very spinose organs much like the antennules, but stiff rather than flexible.The Appendages, Anatomy, and Relationships of Trilobites|Percy Edward Raymond
Cercopoda: jointed foot-like appendages of the last abdominal segment; also applied like cerci.Explanation of Terms Used in Entomology|John. B. Smith
The carabid larva is an active well-armoured grub with the legs and cerci variable in length.
Fighting between sexually excited males resulted in injury to their legs, wings, cerci, and other parts of the body.The Biotic Associations of Cockroaches|Louis M. Roth
Cerci always present; usually modified into unjointed forceps.