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therm Definition

therm (t̸hʉrm)

noun

  1. Obsolete
    1. a great calorie
    2. a small calorie
    3. a unit of heat equal to 1,000 great calories
  2. a unit of heat equal to 100,000 British thermal units

Etymology: < Gr thermē, heat: see warm

therm Finance Definition
100,000 British thermal units (BTUs). One million BTUs is a dekatherm.
therm Usage Examples

Preposition: of

  • gas: These are customers, mainly in the industrial and commercial sectors, who use more than 25,000 therms of gas per annum.

Converse of object

  • add: The acquisition is expected to add approximately 230 million therms to Centrica's equity gas portfolio.

Modifies a noun

  • increase: A 1p per therm increase in gas prices costs the UK papermaking sector £ 6 million per year.