Erg meaning

ûrg
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A vast desert area of deep, rolling sand dunes.
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The centimeter-gram-second unit of energy or work equal to the work done by a force of one dyne acting over a distance of one centimeter.
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An extensive area of desert covered with shifting sand dunes.
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The basic unit of energy or work in the CGS system, equal to the amount of work done by a force of one dyne acting through a distance of one centimeter (10-7 joule)
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The unit of energy or work in the centimeter-gram-second system, equal to the force of one dyne over a distance of one centimeter. This unit has been mostly replaced by the joule.
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An extensive area of desert covered with shifting sand dunes.
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A unit of energy in the CGS system. It is equal to .0000001 joule in the MKS system. See CGS system.
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The unit of work or energy, being the amount of work done by a dyne working through a distance of one centimeter. Equal to 10−7 joules.
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(geomorphology) A large desert region of sand dunes with little or no vegetation, especially in the Sahara.
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Origin of erg

  • Colloquial Arabic (Maghrebi dialect) ‘arq, ‘arg from Arabic ‘irq vein, small mountain, thin tract of sand extending along the ground (in reference to the veinlike appearance of the dunes) ʕrq1 in Semitic roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Greek ergon work werg- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From French erg, from Maghrebi Arabic عرگ (‘erg), corresponding to Standard Arabic عرق (‘irq).

    From Wiktionary

  • From Ancient Greek ἔργον (ergon, “work”).

    From Wiktionary