Any of various worms or wormlike animals of the phylum Annelida, characterized by an elongated, cylindrical, segmented body and including the earthworm and leech.

• 环节动物环节动物门的一种虫或似虫的动物，其特征为身体较长，呈圆柱形分节状，包括蚯蚓和水蛭