The Collaborative International Dictionary
Urosternite
Urosternite \U`ro*ster"nite\, n. [2d uro- + sternum.] (Zo["o]l.) The sternal, or under piece, of any one of the uromeres of insects and other arthropods.
Wiktionary
urosternite
n. (context zoology English) The sternal or under piece of any of the uromeres of insects and other arthropods.