noun (plural cerci) Etymology: New Latin, from Greek kerkos Date: 1826 either of a pair of simple or segmented appendages at the posterior end of various arthropods that usually act as sensory organs
CERCUS
Meaning of CERCUS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012