noun acrae·in \ə-ˈkrē-ən\

Definition of acraein



  1. :  a self-defensive substance secreted by butterflies of the subfamily Acraeinae that is distasteful to birds and other predators

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Origin and Etymology of acraein

New Latin Acraeinae + English -in

First Known Use: 1922

Seen and Heard

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to cast off or become cast off

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