Definition of "erg"
noun:
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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.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
A large desert region of sand dunes with little or no vegetation, especially in the Sahara.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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