litharge

Meanings

1. 1
   noun

   lead monoxide, especially the fused yellow or reddish material produced during the refining of lead or silver

   The refinery collected litharge as the lead oxidized during cupellation.

From Middle English litarge and Old French litharge, from Latin lithargyrus, itself from Greek lithargyros, literally 'silver stone' (lithos 'stone' + argyros 'silver'). The name reflects its production in ancient silver refining.

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