- a unit of energy equal to the energy of one watt acting for one second; the equivalent of one joule.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- A unit of energy equal to the work done by one watt acting for one second, equivalent to 1 joule.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.