[met-uh-thawr-aks, -thohr-]
noun, plural metathoraxes, metathoraces [met-uh-thawr-uh-seez, -thohr-] .
the posterior division of the thorax of an insect, bearing the third pair of legs and the second pair of wings.

1810–20; meta- + thorax

metathoracic [met-uh-thaw-ras-ik, -thoh-] , adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
metathorax (ˌmɛtəˈθɔːræks)
n , pl -raxes, -races
prothorax See also mesothorax the third and last segment of an insect's thorax, which bears the third pair of walking legs and the second pair of wings

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