erg

Pronunciation: /ɜːɡ/

The English word “erg” has 4 meanings listed here.

noun

A unit of work or energy, being the amount of work done by a force of one dyne applied through a distance of one centimeter. Equal to 10⁻⁷ joules.
A large desert region of sand dunes with little or no vegetation, especially in the Sahara.
An ergometer.

From Ancient Greek ἔργον (érgon, “work”). Doublet of ergon and work.

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.