noun🔗Share蛛形纲动物 Any of the eight-legged creatures, including spiders and scorpions, of the class Arachnida."The science class learned that a spider is an arachnid because it has eight legs. "自然科学课上,同学们学到蜘蛛是蛛形纲动物,因为它有八条腿。"My little sister screamed when she saw the spider; she really doesn't like any arachnid. "我妹妹看到蜘蛛时尖叫起来,她真的不喜欢任何蛛形纲动物。animalbiologyinsectnatureorganismChat with AIVocabulary GamePractice Reading