prothorax

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noun pro·tho·rax \(ˌ)prō-ˈthȯr-ˌaks\

Definition of prothorax

  1. :  the anterior segment of the thorax of an insect — see insect illustration

Origin and Etymology of prothorax

New Latin prothorac-, prothorax, from 1pro- + thorax


First Known Use: 1826


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WORD OF THE DAY

to cast off or become cast off

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