Dictionary
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
— eurypterid adjective
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Illustration of EURYPTERID
Origin of EURYPTERID
ultimately from Greek eury- + pteron wing — more at feather
First Known Use: 1871
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