Medical Dictionary
rosy periwinkle
noun \ˈrō-zē-\
Medical Definition of ROSY PERIWINKLE
: a commonly cultivated shrub (Catharanthus roseus synonym Vinca rosea) of the dogbane family (Apocynaceae) that is native to the Old World tropics and is the source of several antineoplastic drugs (as vinblastine and vincristine)—called also Madagascar periwinkle, periwinkle
Seen & Heard
What made you want to look up rosy periwinkle? Please tell us where you read or heard it (including the quote, if possible).