the anterior division of the thorax of an insect, bearing the first pair of legs.
- pro·tho·rac·ic [proh-thaw-ras-ik, -thoh-], /ˌproʊ θɔˈræs ɪk, -θoʊ-/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use prothorax in a sentence
The prothoracic feet of the male are small and weak; of the female, stronger.
The prothoracic legs of the males are smaller than in Basilarchia.
The head is moderately large, the eyes hairy, the palpi more or less heavily scaled, the prothoracic legs feeble and hairy.
Prothoracic bristle: in Diptera, a strong bristle immediately above the front coxa: see propleural bristles.Explanation of Terms Used in Entomology | John. B. Smith
Prothoracic glands: occur in Orthoptera, on the sides of prothorax in certain Phasmid genera.Explanation of Terms Used in Entomology | John. B. Smith
British Dictionary definitions for prothorax
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012