noun pl. batteries -·ter·ies

1. the act of battering, beating, or pounding
2. machinery used in battering
3. a group of similar things arranged, connected, or used together; set or series; array a battery of microphones, a battery of school achievement tests
4. Chiefly Brit. a series of cages or other restrictive compartments used as to confine hens for intensive laying: often used attributively
5. ☆ Baseball the pitcher and the catcher
6. Elec.
   1. a connected group of electrochemical cells that store electric charges and generate direct current
   2. a single cell of this type
   3. a similar nuclear, solar, or thermal device that stores and generates electrical energy
7. Law any illegal beating or touching of another person, either directly or with an object
8. Mil.
   1. an emplacement for heavy guns or a fortification equipped with such guns
   2. a set of heavy guns, rockets, etc.
   3. the personnel who operate such guns: usually the basic unit of artillery, corresponding to an infantry company
9. U.S. Navy a group of guns of the same caliber or used for the same purpose on a warship an antiaircraft battery
10. Music the percussion instruments of an orchestra

Etymology: Fr batterie < OFr battre: see batter