noun pro·to·enstatite \"+\

Definition of protoenstatite

  1. :  an unstable product of the decomposition of talc by heating that has the composition of enstatite and is convertible thereto especially by grinding or by heating to a high temperature

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Origin and Etymology of protoenstatite

German protoenstatit, from prot- + enstatit enstatite

Seen and Heard

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a rounded knoll or a ridge of ice

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