Xiphosura

plural noun
Xiph·​os·​ura | \ˌzifəˈsu̇rə\

Definition of Xiphosura 

: an order of arthropods comprising the horseshoe crabs and extinct related forms and usually including only the two recent genera Limulus (synonym Xiphosurus) with representatives along the American coast of the Atlantic and Tachypleus with species along the Asiatic coast of the Pacific

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Other Words from Xiphosura

xiphosuran \¦⸗⸗¦su̇rən \ adjective or noun
xiphosure \ˈ⸗⸗ˌsu̇(ə)r \ noun plural -s
xiphosurous \¦⸗⸗¦su̇rəs \ adjective

History and Etymology for Xiphosura

New Latin, from Greek xiphos sword + New Latin -ura

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