metamorphosis
Concise Oxford English Dictionary © 2008 Oxford University Press:
metamorphosis /ˌmɛtəˈmɔːfəsɪs, ˌmɛtəmɔːˈfəʊsɪs/
▶noun (pl. metamorphoses /-siːz/)
- 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.
- 2 a complete change in form or nature.
– origin ME: via L. from Gk metamorphōsis, from metamorphoun ‘change shape’.
'metamorphosis' also found in these Oxford entries:

