noun
also sweetbriar ˈ ̷ ̷ˌ ̷ ̷
: any of several closely related and similar Old World roses (especially Rosa eglanteria ) which have stout recurved prickles, small glandular-serrate leaves, and white to deep rosy pink single flowers followed by scarlet fruits, which are sometimes cultivated or used in hybridization, and some of which are naturalized outside their normal range (as in No. America) — called also eglantine