arc·to·staph·y·los \ˌärk(ˌ)tōˈstafələs, -ˌläs\noun Etymology: New Latin, irregular from arct- + Greek staphylē bunch of grapes — more at staphyle 1.capitalized: a genus of chiefly No. American woody plants (family Ericaceae) with alternate evergreen leaves, nodding flowers, and drupaceous fruits 2.-es: a plant of the genus Arctostaphylos — see bearberry