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mesothorax |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Mesothorax \Mes`o*tho"rax\, n. [Meso- + thorax: cf F. m['e]sothorax.] (Zo["o]l.) The middle segment of the thorax in insects. See Illust. of {Coleoptera}.