单词：cnidarian
音标：[nɑɪ'deəri:ən] ；
刺胞动物
n. radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms
词型变化：名词复数形式 : cnidarians
【近义词】
- coelenterate腔肠动物