体节
Metamere \Met"a*mere\, n. [Pref. meta- + -mere.] (Biol.) One of successive or homodynamous parts in animals and plants; one of a series of similar parts that follow one another in a vertebrate or articulate animal, as in an earthworm; a segment; a somite. See Illust. of {Loeven's larva}.
metamere n : one of a series of similar body segments into which some animals are divided longitudinally [syn: {somite}]