Webster 1913 Edition
That heats or imparts heat; promoting warmth or heat; exciting action; stimulating;
heatingmedicines or applications
the aggregate surface exposed to fire or to the heated products of combustion, esp. of all the plates or sheets that are exposed to water on their opposite surfaces; – called also
Webster 1828 Edition
1.Tending to impart heat to; promoting warmth or heat; exciting action; stimulating; as heating medicines or applications.