Pronunciation: (thûrm), [key]
any of several units of heat, as one equivalent to 1000 large calories or 100,000 British thermal units. Also,therme.
var. of thermo- before a vowel: thermesthesia.
var. of thermo- as final element in compound words: isotherm.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.