prothorax

[ proh-thawr-aks, -thohr- ]
/ proʊˈθɔr æks, -ˈθoʊr- /

noun, plural pro·tho·rax·es, pro·tho·ra·ces [proh-thawr-uh-seez, -thohr-] /proʊˈθɔr əˌsiz, -ˈθoʊr-/.

the anterior division of the thorax of an insect, bearing the first pair of legs.

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Origin of prothorax

From New Latin, dating back to 1820–30; see origin at pro-1, thorax

OTHER WORDS FROM prothorax

pro·tho·rac·ic [proh-thaw-ras-ik, -thoh-] /ˌproʊ θɔˈræs ɪk, -θoʊ-/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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British Dictionary definitions for prothorax

prothorax
/ (prəʊˈθɔːræks) /

noun plural -thoraxes or -thoraces (-ˈθɔːrəˌsiːz)

the first segment of the thorax of an insect, which bears the first pair of walking legsSee also mesothorax, metathorax
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