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An instrument for measuring in watts the power flowing in a circuit.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Electronics) a meter for measuring electric power in watts
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈwɒtˌmi tər)

a calibrated instrument for measuring electric power in watts.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.wattmeter - an instrument for measuring in watts the flow of power in an electrical circuit
measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
To measure the wattage of a bulb, plug the wattmeter into the wall and plug the lamp with the bulb being tested into the wattmeter.
A wattmeter is connected to the motors of the FSW machine to measure the power consumed by the machine.
Admittedly the wattmeter I used was hardly state-of-the-art but any significant power surge would produce a corresponding heating of the bulb, which I have failed to detect.
The ultrasonic energy consumed during the experiment was measured by a wattmeter (2,000 bdc 20:3.3, Branson Ultrasonic) attached to the ultrasound unit.
After reaching the steady state conditions indicated by the pressure transducer and ultrasonic power wattmeter, ultrasonically treated samples were collected.
Any photometric laboratory with a wattmeter could compare the nanotube unit to another light source in a few minutes.
The power meter is a terminating digital wattmeter with an input impedance of 50 [omega].
He developed and perfected the wet method, or slurry, for rebonding system molding sand and pioneered the use of a recording Wattmeter to measure muller motor loads to control molding sand quality.