cercus

noun
cer·​cus | \ ˈsər-kəs How to pronounce cercus (audio) \
plural cerci\ ˈsər-​ˌsī How to pronounce cerci (audio) , -​ˌkī \

Definition of cercus

: either of a pair of simple or segmented appendages at the posterior end of various arthropods that usually act as sensory organs

First Known Use of cercus

1826, in the meaning defined above

History and Etymology for cercus

New Latin, from Greek kerkos

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More Definitions for cercus

cercus

noun
cer·​cus | \ ˈsər-kəs How to pronounce cercus (audio) \
plural cerci\ ˈsər-​ˌsī, -​ˌkī How to pronounce cerci (audio) \

Medical Definition of cercus

: either of a pair of simple or segmented appendages at the posterior end of various arthropods