Definition of “battery”

noun

1. 1. two or more primary cells connected together, usually in series, to provide a source of electric current
   2. short for dry battery
2. another name for accumulator (sense 1)
3. a number of similar things occurring together  ⇒ a battery of questions 
4. criminal law unlawful beating or wounding of a person or mere touching in a hostile or offensive manner See also assault and battery
5. a fortified structure on which artillery is mounted
6. a group of guns, missile launchers, searchlights, or torpedo tubes of similar type or size operated as a single entity
7. a small tactical unit of artillery usually consisting of two or more troops, each of two, three or four guns
8. mainly British 
   1. a large group of cages for intensive rearing of poultry
   2. ((as modifier)  ⇒ battery hens 
9. psychology a series of tests
10. chess two pieces of the same colour placed so that one can unmask an attack by the other by moving
11. the percussion section in an orchestra
12. baseball the pitcher and the catcher considered together