noun Ath·y·ris \ˈathərə̇s\

Definition of Athyris

  1. :  a genus of smooth biconvex extinct brachiopods having the plates of the brachidium prolonged into spirally rolled laterally directed processes

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Origin and Etymology of athyris

New Latin, from 2a- + Greek thyris valve, opening

Seen and Heard

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a brief usually trivial fact

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