n. Abbr. W Electricity An SI-derived unit of power equal to one joule per second. See Table at measurement. [After James Watt.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
British engineer whose innovations, such as the condensing engine (1769) and the centrifugal governor (1788), greatly increased the efficiency and practicality of steam power. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.