noun as·tog·e·ny \aˈstäjənē\

Definition of astogeny



  1. :  a more or less marked change in size or form shown by all the zooids in colonial animals (such as graptolites) as the colony grows older

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Origin and Etymology of astogeny

probably from Greek astos inhabitant of a city (from asty city) + English -geny

Seen and Heard

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to cast off or become cast off

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