(obsolete) worms; a former taxonomic category for soft-bodied, long, and legless invertebrates without skeletons, now split into groups such as 扁形动物 biǎn​xíng​dòng​wù, 环节动物 huán​jié​dòng​wù, and 线形动物 xiàn​xíng​dòng​wù