Change of form, shape, or structure; transformation; esp. the striking change in form and habits of certain organisms, as from a chrysalis into a butterfly.

(可数常用单数)变形；蜕变；变性；(尤指)有机物的变形及蜕变(如蛹变为蝴蝶)。

Person or thing so changed.

经过退变的人或物。