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watt (n.)

unit of electrical power, 1882, in honor of James Watt (1736-1819), Scottish engineer and inventor. The surname is from an old pet form of Walter and also is in Watson.

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Definitions of watt from WordNet
1
watt (n.)
a unit of power equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a resistance of 1 ohm;
Synonyms: w
2
Watt (n.)
Scottish engineer and inventor whose improvements in the steam engine led to its wide use in industry (1736-1819);
Synonyms: James Watt
From wordnet.princeton.edu