First Known Use: 1888
Dictionary
therm
noun \ˈthərm\
Definition of THERM
: a unit for quantity of heat that equals 100,000 British thermal units
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Origin of THERM
Greek thermē heat, from thermos hot; akin to Latin formus warm, Sanskrit gharma heat
Medical Dictionary
therm
noun \ˈthərm\
Medical Definition of THERM
: any of several units of quantity of heat: as a : 1000 kilogram calories b : 100,000 British thermal units
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