xiphosuran

xiphosuran Definition

xipho·su·ran (zif′ə so̵or′ən, -syo̵or′-)

noun

any of an order (Xiphosura) of arthropods made up of the horseshoe crabs and related extinct forms

Etymology: < Gr xiphos, sword + oura, tail: see uro-

adjective

of or pertaining to this order

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