eurypterid

[ yoo-rip-tuh-rid, yuh- ]
/ yʊˈrɪp tə rɪd, yə- /

noun

any aquatic arthropod of the extinct order Eurypterida, from the Paleozoic Era, closely related to trilobites and scorpions.

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Origin of eurypterid

From the New Latin word Eurypteridae, dating back to 1870–75. See eury-, -pterous, -id2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for eurypterid

  • The continuation of the dwindling process, already initiated in the Eurypterid, would easily result in the tentacles of Ammocœtes.

    The Origin of Vertebrates|Walter Holbrook Gaskell

British Dictionary definitions for eurypterid

eurypterid
/ (jʊˈrɪptərɪd) /

noun

any large extinct scorpion-like aquatic arthropod of the group Eurypterida, of Palaeozoic times, thought to be related to the horseshoe crabs

Word Origin for eurypterid

C19: from New Latin Eurypterida, from eury- + Greek pteron wing, feather
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012