单词：metazoa
音标：[metә'zәuә] ；
n. [动]复细胞动物,后生动物
n multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous system
n any animal of the subkingdom Metazoa; all animals except protozoans and sponges
n any animal of the subkingdom Metazoa; all animals except protozoans and sponges
词型变化：名词复数形式 : metazoas