Gain 1 : (n). Geophysics. The change in the amplitude of an electrical signal from the original input to the amplified output. See: automatic gain control, true-amplitude recovery
Schlumberger Ltd. (The World's Leading Supplier Of Technology, Integrated Project Management And Information Solutions to Customers Working in The Oil and Gas Industry Worldwide), Schlumberger Oilfield Glossary Cedex, France 2014. http://www.glossary.oilfield.slb.com/en/Terms/sym/ a.aspx, (Ergo - Brit) {766}