metamorphosis

noun
meta*mor*pho*sis \ ˌme-tə-ˈmȯr-fə-səs \
15th century{ds||1|a|}
  • change of physical form, structure, or substance especially by supernatural means
  • a striking alteration in appearance, character, or circumstances
  • a typically marked and more or less abrupt developmental change in the form or structure of an animal (such as a butterfly or a frog) occurring subsequent to birth or hatching
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