(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
(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