noun, plural mes·o·tho·rax·es, mes·o·tho·ra·ces [mez-uh-thawr-uh-seez, -thohr-, mes-, mee-zuh-, -suh-] /ˌmɛz əˈθɔr əˌsiz, -ˈθoʊr-, ˌmɛs-, ˌmi zə-, -sə-/.
Examples from the Web for mesothorax
When it is covered by the mesothorax; it is then usually a mere membrane.
Mesothorax: the second or middle thoracic ring; bears the middle legs and the anterior wings.Explanation of Terms Used in Entomology|John. B. Smith
When behind it terminates in a long scutelliform process which covers the Mesothorax, Metathorax, and great part of the Abdomen.
The next segment is the mesothorax, which is immovably fused to the next thoracic segment.Elementary Zoology, Second Edition|Vernon L. Kellogg
The anterior segment is known as the prothorax, the middle segment as the mesothorax, and the after segment as the metathorax.The Butterfly Book|William Jacob Holland