metamorphosis
/ˌmetəˈmɔːfəsɪs/noun
(pl. metamorphoses /-siːz/)［mass noun］
1- Zoology (in an insect or amphibian) the process of transformation from an immature form to an adult form in two or more distinct stages【动】（昆虫或两栖动物的）变态。
1.1
- a change of the form or nature of a thing or person into a completely different one（人或物的）变形; 变质：
his metamorphosis from presidential candidate to talk-show host.
他从总统候选人到访谈节目主持人的大转变。
词源
late Middle English: via Latin from Greek metamorphōsis, from metamorphoun 'transform, change shape'.