Bible Dictionaries
Prothorax

Webster's Dictionary

(n.) The first or anterior segment of the thorax in insects. See Illusts. of Butterfly and Coleoptera.

Bibliography Information
Webster, Noah. Entry for 'Prothorax'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/prothorax.html. 1828.