arteriole
noun /ɑːˈtɪəriəʊl/
/ɑːrˈtɪriəʊl/
(anatomy- a thin branch of an artery that leads off into capillaries
小动脉：细小动脉分支，通向毛细血管 词源mid 19th cent.: from French artériole, diminutive of artère from Latin arteria, from Greek artēria, probably from airein ‘raise’.