Webster's Revised Unabridged Dictionary · 1913

(Zoology) Any one of numerous species of lamellicorn beetles of the genus Scarabaeus, or family Scarabaeidae, especially the sacred, or Egyptian, species (Scarabaeus sacer, and Scarabaeus Egyptiorum).

(Egyptian Archaeology, Jewelry) A stylized representation of a scarab beetle carved in stone or faience, or made in baked clay, usually in a conventionalized form in which the beetle has its legs held closely at its sides, and commonly having an inscription on the flat underside; -- a symbol of resurrection, used by the ancient Egyptians as an ornament or a talisman, and in modern times used in jewelry, usually by engraving the formalized scarab design on cabuchon stones. Also used attributively; as, a scarab bracelet [a bracelet containing scarabs]; a ring with a scarab [the carved stone itself].