: one of the anterior pair of appendages of an arachnid often specialized as fangs

Word History

Etymology

New Latin, from French chélicère, from Greek chēlē + keras horn — more at horn

First Known Use

1835, in the meaning defined above

Time Traveler
The first known use of chelicera was in 1835

Browse Nearby Words

Cite this Entry

“Chelicera.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chelicera. Accessed 31 Mar. 2025.

Kids Definition

chelicera

noun
plural cheliceras or chelicerae -ˌrē How to pronounce chelicera (audio)
: either of two special front legs of a spider that often function as fangs

Medical Definition

chelicera

noun
: one of the anterior pair of appendages of an arachnid often specialized as fangs

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