Battery is (among other things) physical attack or assault: “He was arrested for battery after he hit his manager several times on the head with a large flashlight.”

When you think of a battery, you probably envision the electrical devices that allow you to power everything in your life — from your car to your cell phone. However, battery has a whole host of meanings. In addition to beating someone as in "assault and battery," it also refers to a collection of artillery or guns: “He’s collected a battery of weapons; we hope he doesn’t intend to use them." Beyond guns, a battery can also refer to any group or collection of similar things: “She was subjected to a battery of tests, designed to determine whether she was a genius or just plain smart.”

Definitions of battery
  1. noun
    a collection of related things intended for use together
    “took a battery of achievement tests”
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    type of:
    accumulation, aggregation, assemblage, collection
    several things grouped together or considered as a whole
  2. noun
    a series of stamps operated in one mortar for crushing ores
    synonyms: stamp battery
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    type of:
    stamp mill, stamping mill
    a mill in which ore is crushed with stamps
  3. noun
    group of guns or missile launchers operated together at one place
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    type of:
    artillery, artillery unit
    an army unit that uses big guns
  4. noun
    the heavy fire of artillery to saturate an area rather than hit a specific target
    synonyms: barrage, barrage fire, bombardment, shelling
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    type of:
    fire, firing
    the act of firing weapons or artillery at an enemy
  5. noun
    a device that produces electricity; may have several primary or secondary cells arranged in parallel or series
    synonyms: electric battery
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    show 7 types...
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    A battery
    the battery used to heat the filaments of a vacuum tube
    B battery
    battery for supplying a constant positive voltage to the plate of a vacuum tube
    C battery
    battery used to maintain the grid potential in a vacuum tube
    galvanic battery, voltaic battery
    battery consisting of a number of voltaic cells arranged in series or parallel
    galvanic pile, pile, voltaic pile
    battery consisting of voltaic cells arranged in series; the earliest electric battery devised by Volta
    dry battery
    a voltaic battery consisting of two or more dry cells
    accumulator, storage battery
    a voltaic battery that stores electric charge
    type of:
    electrical device
    a device that produces or is powered by electricity
  6. noun
    a unit composed of the pitcher and catcher
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    type of:
    squad, team
    a cooperative unit (especially in sports)
  7. noun
    an assault in which the assailant makes physical contact
    synonyms: assault and battery
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    resisting arrest
    physical efforts to oppose a lawful arrest; the resistance is classified as assault and battery upon the person of the police officer attempting to make the arrest
    type of:
    a threatened or attempted physical attack by someone who appears to be able to cause bodily harm if not stopped
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