n.自割（当虾、蜥蜴等动物遭到攻击时脚、爪、尾等会自动脱落的反射作用）； 变形： 复数：autotomies 英英释义： autotomy[ ɔ'tɔtəmi ]n.spontaneous removal or casting off of a body part (as the tail of a lizard or claw or a lobster) especially when the organism is injured or under attack