(n) :
the substance which remains after a metal or mineral has been thoroughly burnt, seen as being the essential substance left after the expulsion of phlogiston; (Now recognised as being) the oxide left after calcination of a metal
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(n) :
the substance which remains after a metal or mineral has been thoroughly burnt, seen as being the essential substance left after the expulsion of phlogiston; (Now recognised as being) the oxide left after calcination of a metal