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a. A unit of heat equal to 100,000 British thermal units (1.054 × 108 joules).
b. A unit of heat equal to 1,000 large calories.
a. A unit of heat equal to the large calorie.
b. A unit of heat equal to the small calorie.

[Greek thermē, heat, from thermos, warm, hot; see gwher- in Indo-European roots.]


(Units) Brit a unit of heat equal to 100 000 British thermal units. One therm is equal to 1.055 056 × 108 joules
[C19: from Greek thermē heat]



any of several units of heat, as one equivalent to 1000 large calories or 100,000 British thermal units.
[1885–90; < Greek thérmē heat]


var. of thermo- before a vowel: thermion.


var. of thermo- as a final element: ectotherm.


ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.therm - a unit of heat equal to 100,000 British thermal units
energy unit, heat unit, work unit - a unit of measurement for work
B.Th.U., British thermal unit, BTU - a unit of heat equal to the amount of heat required to raise one pound of water one degree Fahrenheit at one atmosphere pressure; equivalent to 251.997 calories


[θɜːm] Ntermia f


[θɜːm] n1.055 056 x 10^8 joule (unità termica usata in Gran Bretagna)
References in periodicals archive ?
WRAPPED UP: Chris Hirst, director of energy company Low Therm Solutions, at the nearly complete eco-property
Gas for delivery during the first quarter of next year - one of the benchmark industrial prices - was trading at 80p a therm today.
The promotion draws attention to the new CoffeeTEAM Therm, a coffeemaker/burr grinder combination that features a stainless-steel vacuum carafe to keep coffee hot for hours after brewing.
It was at 75p a therm yesterday as some businesses went back to work and temperatures dropped well below freezing in parts of Britain.
The customized kits typically contain power supplies, reference guides, circular antennae, and cables, as well as Smart Therm labels.
2) no caption (Krups' Aroma Control Stainless Steel Therm Time coffee maker)
Super Therm could have been applied to the spaceship's foam that covered the shuttle's external fuel tank.
SICPA Therm, developed with newer and more stable resin/amine combinations, can be used in both direct and indirect thermal label applications, eliminating the need for separate ink systems.
Developed by Image Therm Engineering, Waltham, MA, in conjunction with Muro, the system captures nasal spray characterization data required to obtain approval from the U.
Under the proposal, if a SC12 priority C customer who pays 39 cents per therm consumes 100,000 therms of gas per month and has a curtailment consumption of 1,000 therms, the penalty would be $6,500 for using less than n percent of the average daily quantity and $9,750 for using more than n percent, based on a firm gas cost of 25 cents per therm.
French heating and cooling equipment maker Cie Industrielle Applications Thermiques (Ciat) has bought a stake of 70% in sector player Easy Therm (EPA:MLTHE), local daily Les Echos said today.