eurypterid

noun
eu·ryp·ter·id | \yu̇-ˈrip-tə-rəd \

Definition of eurypterid 

: any of an order (Eurypterida) of usually large aquatic Paleozoic arthropods resembling scorpions and related to the horseshoe crabs

called also sea scorpion

Illustration of eurypterid

Illustration of eurypterid

Other Words from eurypterid

eurypterid adjective

First Known Use of eurypterid

1871, in the meaning defined above

History and Etymology for eurypterid

ultimately from Greek eury- + pteron wing — more at feather

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The first known use of eurypterid was in 1871

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