from the GNU version of the Collaborative International Dictionary of English
- A unit of work or energy equal to that done by one kilowatt acting for one hour; -- approximately equal to 1.34 horse-power hour.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a unit of energy equal to the work done by a power of 1000 watts operating for one hour
Sorry, no etymologies found.