\ ˈərg How to pronounce erg (audio) \

Definition of erg

 (Entry 1 of 2)

: a centimeter-gram-second unit of work equal to the work done by a force of one dyne acting through a distance of one centimeter and equivalent to 10−7 joule
variants: or ergo-

Definition of erg- (Entry 2 of 2)

: work ergometer

Examples of erg in a Sentence

Recent Examples on the Web: Noun The density of dark energy has been measured to be about 100-millionth of an erg per cubic centimeter. Alan Lightman, The Atlantic, 22 Mar. 2021 From December 19-21, Rett had logged 62 consecutive hours of rowing on an indoor erg machine. Jordan Freiman, CBS News, 15 Jan. 2020 My first step before hitting the water was to learn the movements on an indoor rower called an erg, which is basically a handy machine that conveniently quantifies your lack of skill in numbers on a screen. Danielle Lerner, The Courier-Journal, 11 May 2018 ERGs are an important part of Prophet’s overall strategy. Ellen Mcgirt, Fortune, 14 July 2017 Thus the total output of the sun in its life will be about 1051 erg. Alexis Madrigal, WIRED, 23 Feb. 2010

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'erg.' 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 erg


1873, in the meaning defined above

History and Etymology for erg


Greek ergon work — more at work

Combining form

Greek, from ergon

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Cite this Entry

“Erg.” Dictionary, Merriam-Webster, Accessed 18 Oct. 2021.

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More Definitions for erg


\ ˈərg How to pronounce erg (audio) \

Medical Definition of erg

 (Entry 1 of 2)

: a cgs unit of work equal to the work done by a force of one dyne acting through a distance of one centimeter and equivalent to 10−7 joule



Medical Definition of ERG (Entry 2 of 2)


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