Resistance 10 : That property of a conductor by which it opposes the flow of an electric current, resulting in the generation of heat in the conducting material; the measure of resistance is usually expressed in ohms
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}