/ ˈkrɪsəlɪs; NAmE / noun
(also chrys·alid ) the form of an insect, especially a butterfly or moth , while it is changing into an adult inside a hard case, also called a chrysalis
—compare pupa
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WORD ORIGIN
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 some pupae).