What is "erv"

ERV is an abbreviation that may refer to:

• Endogenous retrovirus, an inherited retrovirus encoded in an organism's genome
• Energy recovery ventilation, systems where hot exhaust air is recovered to partially heat fresh air and save energy
• English Revised Version, English-language copy of the 19th century Revised Version of the King James Bible
• Easy-to-Read Version, English Bible translation
• Emergency response vehicle, vehicles associated with emergency services including ambulances, fire trucks and police vehicles
• Expiratory reserve volume, lung volume representing the difference between a normal exhalation and a forced exhalation that removes as much air as possible from the lungs
• Earth return vehicle, spacecraft that forms a portion of the Mars Direct proposal responsible for returning the astronauts to Earth