adjective py·ro·gno·mic \¦pīrə¦nōmik, -rəg¦n-, -näm-\

Definition of pyrognomic

  1. :  readily becoming incandescent when heated due to rapid exothermic recrystallization —used of metamict minerals (as gadolinite)

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Origin and Etymology of pyrognomic

pyr- + Greek gnōmon knower, discerner, index + English -ic — more at gnomon

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to criticize severely

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