AskDefine | Define erg

Dictionary Definition

erg n : a cgs unit of work or energy; the work done by a force of one dyne acting over a distance of one centimeter

User Contributed Dictionary



Etymology 1

From Greek ἔργον ‘work’.


  1. The unit of work or energy, being the amount of work done by a dyne working through a distance of one centimeter.
unit of work or energy
  • Japanese: エルグ

Etymology 2

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


  1. A large desert region of sand dunes, especially in the Sahara.



  1. very
    Het appartement was erg klein.
    The apartment was very small.

Old Norse


  1. hill-pasture

Extensive Definition

For other uses see Erg (disambiguation)
An erg is the unit of energy and mechanical work in the centimetre-gram-second (CGS) system of units, symbol "erg". Its name is derived from the Greek ergon meaning work OED].
The erg is a small unit, equal to a force of one dyne exerted for a distance of one centimetre. In the CGS base units, it is equal to one gram centimetre-squared per second squared (g·cm²/s²). It is thus equal to 1 × 10−7 joules or 100 nanojoule (nJ) in SI units.
1 erg = 10−7 joule
1 erg = 6.2415 GeV = 6.2415 eV
1 joule = 107 erg
1 dyn cm = 1 erg.
erg in Danish: Erg (måleenhed)
erg in German: Erg (Einheit)
erg in Spanish: Ergio
erg in Esperanto: Ergo
erg in Basque: Erg
erg in Persian: ارگ (یکا)
erg in French: Erg (unité)
erg in Italian: Erg
erg in Hebrew: ארג
erg in Dutch: Erg
erg in Japanese: エルグ
erg in Polish: Erg (jednostka)
erg in Portuguese: Erg
erg in Russian: Эрг
erg in Slovenian: Erg
erg in Finnish: Ergi
erg in Swedish: Erg
erg in Turkish: Erg
erg in Ukrainian: Ерг
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