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Chelicerata

plural noun
Che·​lic·​er·​ata | \ kə-ˌli-sə-ˈrä-tə How to pronounce Chelicerata (audio) , -ˈrā-tə\

Definition of Chelicerata

: a subphylum or other division of the phylum Arthropoda comprising forms having chelicerae and lacking antennae and including the horseshoe crabs and eurypterids, spiders, scorpions, and sea spiders A fossil eurypterid, representing the Chelicerata.— Stephen Jay Gould, Wonderful Life, 1989 — see arachnida , merostomata , pycnogonida

First Known Use of Chelicerata

1919, in the meaning defined above

History and Etymology for Chelicerata

borrowed from New Latin, Latinization (with New Latin -ata -ata) of French chélicérés, from chélicère chelicera + -és, plural of -é, adjective and participle ending going back to Latin -ātus -ate entry 3

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