Noun | 1. | ![]() arthropod genus - a genus of arthropods Bombycidae, family Bombycidae - Chinese silkworm moth Bombyx mori, domestic silkworm moth, domesticated silkworm moth - stocky creamy-white Asiatic moth found almost entirely under human care; the source of most of the silk commerce silkworm - the commercially bred hairless white caterpillar of the domestic silkworm moth which spins a cocoon that can be processed to yield silk fiber; the principal source of commercial silk |