wattmeter

[wot-mee-ter]

noun

Electricity.

1. a calibrated instrument for measuring electric power in watts.

wattmeter

/ ˈwɒtˌmiːtə /

noun

1. a meter for measuring electric power in watts

Word History and Origins

Origin of wattmeter¹

First recorded in 1885–90; watt + -meter

Example Sentences

Beginning at the top and enumerating them in order these instruments are: Three ammeters, one for each phase, a volumeter, an indicating wattmeter, a power factor indicator and a field ammeter.

From Project Gutenberg

The round dial instrument shown at the bottom of each row of instruments is a three-phase recording wattmeter.

From Project Gutenberg