prothorax
Americannoun
plural
prothoraxes, prothoraces-
the anterior division of the thorax of an insect, bearing the first pair of legs.
noun
-
the first segment of the thorax of an insect, which bears the first pair of walking legs See also mesothorax metathorax
Other Word Forms
- prothoracic adjective
Etymology
Origin of prothorax
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
For, commencing on the level of the beach, the usual type is broad, flat, more or less opake, with the prothorax almost impunctate, and the elytra soldered together.
From On the Variation of Species, with Especial Reference to the Insecta ; Followed by an Inquiry into the Nature of Genera by Wollaston, Thomas Vernon
Magnified. b, spiracle on prothorax; c, protruded head region; d, tail-end with functional spiracles; e, f, head region with mouth hooks protruded; g, hooks retracted; h, eggs.
From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" by Various
Fossula -ae: a deep groove or sinus with sharp edges: specifically applied to grooves on the head or sides of prothorax in which the antennae are concealed.
From Explanation of Terms Used in Entomology by Smith, John. B.
Or ridged areas on the sides of the prothorax may be scraped by “files” on the front thighs, as in some ground-beetles.
From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" by Various
In the Achorutidae the head is forwardly directed, the tergum of the prothorax conspicuous, and the spring small or vestigial.
From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" by Various
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.