An Erg is the unit of Energy in the ''centimetre-gram-second'' ( CGS ) system of Unit s.
Erg is a common name for an Indoor Rower , particularly those manufactured by the Concept2 company, taken from its purpose of measuring the amount of work done during training (as "Erg" is short for "Ergometer"). It is also a Slang term for the act of using an indoor rower.
An erg is a large, relatively flat area of desert covered with shifting wind-swept sand, especially in the Sahara .
