proleg

noun
pro·​leg | \ ˈprō-ˌleg How to pronounce proleg (audio) , -ˌlāg\

Definition of proleg

: a fleshy leg that occurs on an abdominal segment of some insect larvae but not in the adult

First Known Use of proleg

1817, in the meaning defined above

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The first known use of proleg was in 1817

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