reserve air n.
See expiratory reserve volume.
noun 1. one of the 12 principal banks of the U.S. Federal Reserve System. 2. a bank authorized by a government to hold the reserves of other banks. reserve bank noun 1. one of the twelve banks forming part of the US Federal Reserve System
noun, Nautical. 1. the difference between the volume of a hull below the designed waterline and the volume of the hull below the lowest opening incapable of being made watertight.
noun, Automotive. 1. the capacity of a battery, measured in minutes, to keep a vehicle operating if the charging system fails.
noun, Sports. 1. the clause in the contract of a professional player in some sports that binds the player to a team for a season beyond the expiration of the contract in the event a new contract has not been made meanwhile or the player has not been sent to another team.