noun Atry·pa \ə‧ˈtrīpə\

Definition of Atrypa

  1. :  a genus of extinct Silurian and Devonian plicate-shelled or costate-shelled brachiopods having the plates of the brachidium produced into spirally rolled processes with the apices usually directed toward the plane of symmetry of the valve

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Origin and Etymology of atrypa

New Latin, from 2a- + Greek trypa hole — more at trypa

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capable of being understood in two ways

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