noun Physics.


or therme


noun Physics.

any of several units of heat, as one equivalent to 1000 large calories or 100,000 British thermal units.

Origin of therm

First recorded in 1885–90, therm is from the Greek word thérmē heat Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for therme

Historical Examples of therme

  • The original name of Thessalonica was Therme, whence the gulf at the head of which it is situated, was called the Thermaic gulf.

British Dictionary definitions for therme



British a unit of heat equal to 100 000 British thermal units. One therm is equal to 1.055 056 × 10 8 joules

Word Origin for therm

C19: from Greek thermē heat
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012