noun, plural che·lic·er·ae [kuh-lis-uh-ree] /kəˈlɪs əˌri/.
one member of the first pair of usually pincerlike appendages of spiders and other arachnids.
Origin of chelicera
1825–35; < New Latin, equivalent to cheli- cheli- + Greek kér(as) horn + Latin -a feminine noun ending
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noun plural -erae (-əˌriː)
one of a pair of appendages on the head of spiders and other arachnids: often modified as food-catching claws
Word Origin for chelicera
C19: from New Latin, from French chélicère, from chél- see chela 1 + -cère from Greek keras horn
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
1831, plural of Modern Latin chelicera, from Greek khele "claw, talon, cloven hoof," from PIE *ghel-wo-, from root *ghel-una- "jaw," + keras "horn" (see kerato-). Earlier chelicer (1835), from French chélicère.
Online Etymology Dictionary, © 2010 Douglas Harper