a.rach.nid
n.（名词）Any of various arthropods of the class Arachnida, such as spiders, scorpions, mites, and ticks, characterized by four pairs of segmented legs and a body that is divided into two regions, the cephalothorax and the abdomen.Also called arachnoid 蜘蛛纲动物：一种蜘蛛纲节肢动物们，如蜘蛛、蝎子、小虫及扁虱，特征是有四对分节的腿和分为两部分即头胸部及腹部的身体也作 arachnoid
来源：From New Latin Arachnida [class name] 源自 现代拉丁语 Arachnida [纲名] from Greek arakhnô [spider] 源自 希腊语 arakhnô [蜘蛛]
【引伸】
arach.nidan
