/ Dictionary / Index E erg: Meaning and Definition of Find definitions for: erg Pronunciation: (ûrg), [key] — n. Physics. the 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− joule. erg Pronunciation: (erg), [key] — n. Geol. any vast area covered with sand, as parts of the Sahara Desert. ERG Pronunciation: [key] electroretinogram. erg- Pronunciation: [key] var. of before a vowel: ergodic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: erg (Thesaurus) Erfurt ergate Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language