mil·​li·​watt | \ ˈmi-lə-ˌwät How to pronounce milliwatt (audio) \

Definition of milliwatt

: one thousandth of a watt

Examples of milliwatt in a Sentence

Recent Examples on the Web One of these ingestibles can power a 5 milliWatt device (or, 0.005 of a watt) for up to 18 hours using 600 milligrams of active melanin material. David Grossman, Popular Mechanics, "You Can Swallow This Battery," 24 Aug. 2016 Dr Neasham’s nanomodems consume only ten milliwatts when listening, and 1W when broadcasting. The Economist, "A better way to transmit messages underwater," 10 May 2018 Two General Electric mobile gas turbines that can provide at least 50 milliwatts GIVE SOME COMPARISON OF WHAT THIS MEANS -- POWER FOR xxx HOUSES OR SOMESUCH were delivered to the Palo Seco power plant near San Juan. Oren Dorell, USA TODAY, "Storm whipped Puerto Rico power restoration plagued by problems after Maria," 23 Oct. 2017 But as Styropyro found out by using his own laser power meter, plenty of pointers on eBay that claim to be five milliwatts are as much as ten times as strong. Eric Limer, Popular Mechanics, "Why You Should Never Buy Laser Pointers on eBay," 17 Oct. 2017 The surface emitters shine a low-powered round beam of 1 to 2 milliwatts out the top of the chip and are used to pass optical data around local networks. Josh Mchugh, WIRED, "Beam On," 1 Aug. 2001

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'milliwatt.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of milliwatt

circa 1914, in the meaning defined above

History and Etymology for milliwatt

International Scientific Vocabulary

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Time Traveler for milliwatt

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The first known use of milliwatt was circa 1914

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Cite this Entry

“Milliwatt.” Dictionary, Merriam-Webster, Accessed 15 May. 2021.

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More Definitions for milliwatt


mil·​li·​watt | \ ˈmil-ə-ˌwät How to pronounce milliwatt (audio) \

Medical Definition of milliwatt

: one thousandth of a watt abbreviation mW

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