the cgs unit of work or energy. 1 erg is equivalent to 10–7 joule
WordReference Random House Unabridged Dictionary of American English © 2025
erg1
(ûrg),USA pronunciation n. [Physics.]
erg2 (erg),USA pronunciation n. [Geol.]
ERG,
erg-,
- Physicsthe centimeter-gram-second unit of work or energy, equal to the work done by a force of one dyne when its point of application moves through a distance of one centimeter in the direction of the force;
10-7 joule.
- Greek érgon work
- 1870–75
erg2 (erg),USA pronunciation n. [Geol.]
- Geologyany vast area covered with sand, as parts of the Sahara Desert.
- Arabic ’irq
- French
- 1870–75
ERG,
- Ophthalmologyelectroretinogram.
erg-,
- var. of ergo- 1 before a vowel:ergodic.
Collins Concise English Dictionary © HarperCollins Publishers::
an area of shifting sand dunes in a desert, esp the Sahara
er•go
(ûr′gō, er′gō),USA pronunciation conj., adv.
ergo-1 :
ergo-2 :
- therefore.
- Latin
- 1350–1400
ergo-1 :
- a combining form meaning "work'':ergograph.
- combining form representing Greek érgon
ergo-2 :
- a combining form of ergot: ergotoxine.
- French
'erg' also found in these entries (note: many are not synonyms or translations):
Bohr magneton
- Boltzmann constant
- Planck's constant
- allergy
- argon
- dysergia
- eerie
- electroretinogram
- ergo
- ergodic
- hypergol
- hypergolic
- lysergic acid
- monergism
- parergon
- synergism
- viosterol