prothorax

noun
pro·​tho·​rax | \ (ˌ)prō-ˈthȯr-ˌaks How to pronounce prothorax (audio) \

Definition of prothorax

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

First Known Use of prothorax

1826, in the meaning defined above

History and Etymology for prothorax

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

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The first known use of prothorax was in 1826

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Cite this Entry

“Prothorax.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prothorax. Accessed 16 Jun. 2021.

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More from Merriam-Webster on prothorax

Britannica.com: Encyclopedia article about prothorax

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