This shows grade level based on the word's complexity.
watt
[ wot ]
/ wÉt /
Save This Word!
This shows grade level based on the word's complexity.
noun
the standard unit of power in the International System of Units (SI), equivalent to one joule per second and equal to the power in a circuit in which a current of one ampere flows across a potential difference of one volt. Abbreviation: W, w.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I canāt figure out _____ gave me this gift.
Origin of watt
First recorded in 1882; named after J. Watt
Words nearby watt
Other definitions for watt (2 of 2)
Watt
[ wot ]
/ wÉt /
noun
James, 1736ā1819, Scottish engineer and inventor.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, Ā© Random House, Inc. 2023
How to use watt in a sentence
British Dictionary definitions for watt (1 of 2)
watt
/ (wÉt) /
noun
the derived SI unit of power, equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a potential difference of 1 volt. 1 watt is equivalent to 1.341Ā ĆĀ 10 ā3 horsepowerSymbol: W
Word Origin for watt
C19: named after James Watt
British Dictionary definitions for watt (2 of 2)
Watt
/ (wÉt) /
noun
James. 1736ā1819, Scottish engineer and inventor. His fundamental improvements to the steam engine led to the widespread use of steam power in industry
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
Ā© William Collins Sons & Co. Ltd. 1979, 1986 Ā© HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for watt (1 of 2)
watt
[ wÅt ]
The SI derived unit used to measure power, equal to one joule per second. In electricity, a watt is equal to current (in amperes) multiplied by voltage (in volts).
Scientific definitions for watt (2 of 2)
Watt
James 1736-1819
British engineer and inventor who patented a much improved version of the steam engine (1769) and devised the unit of horsepower. The watt unit of power is named for him.
The American HeritageĀ® Science Dictionary
Copyright Ā© 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for watt
The New Dictionary of Cultural Literacy, Third Edition
Copyright Ā© 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.