chrysalis
/ˈkrɪsəlɪs/noun
(pl. chrysalises)
1- a quiescent insect pupa, especially of a butterfly or moth蛹（尤指蝶蛹、蛾蛹）。
1.1
- the hard outer case of this, especially after being discarded（尤指昆虫飞走后留下的）蛹壳。
1.2
- figurative a preparatory or transitional state〈喻〉形成状态; 过渡状态：
she emerged from the chrysalis of self-conscious adolescence.
她脱离了害羞的青春期这一过渡状态。
词源
early 17th cent.: from Latin chrysal(l)is, chrysal(l)id-, from Greek khrusallis, from khrusos 'gold' (because of the gold colour or metallic sheen of the pupae of some species).