[ bat-uh-ree ]
See synonyms for battery on
noun,plural bat·ter·ies.
  1. Also called galvanic battery, voltaic battery. Electricity. a combination of two or more cells electrically connected to work together to produce electric energy. : See also cell (def. 7a).

  2. any large group or series of related things: a battery of questions.

  1. Military.

    • two or more pieces of artillery used for combined action.

    • a tactical unit of artillery, usually consisting of six guns together with the artillerymen, equipment, etc., required to operate them.

    • a parapet or fortification equipped with artillery.

  2. a group or series of similar articles, machines, parts, etc.

  3. Baseball. the pitcher and catcher considered as a unit.

  4. Navy.

    • (on a warship) a group of guns having the same caliber or used for the same purpose.

    • the whole armament of a warship.

  5. Psychology. a series of tests yielding a single total score, used for measuring aptitude, intelligence, personality, etc.

  6. the act of beating or battering.

  7. Law. an unlawful attack upon another person by beating or wounding, or by touching in an offensive manner.

  8. an instrument used in battering.

  9. Also batterie. Music. the instruments comprising the percussion section of an orchestra.

  10. any imposing group of persons or things acting or directed in unison: a battery of experts.

Origin of battery

First recorded in 1525–35; from Middle French batterie, equivalent to batt(re) “to beat” + -erie noun suffix; see bate2, -ery

Words that may be confused with battery

Words Nearby battery

Other definitions for Battery (2 of 2)

[ bat-uh-ree ]

  1. The Battery, a park at the south end of Manhattan, in New York City.

  • Also called Battery Park . Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use battery in a sentence

British Dictionary definitions for battery


/ (ˈbætərɪ) /

nounplural -teries
    • two or more primary cells connected together, usually in series, to provide a source of electric current

    • short for dry battery

  1. another name for accumulator (def. 1)

  1. a number of similar things occurring together: a battery of questions

  2. criminal law unlawful beating or wounding of a person or mere touching in a hostile or offensive manner: See also assault and battery

  3. a fortified structure on which artillery is mounted

  4. a group of guns, missile launchers, searchlights, or torpedo tubes of similar type or size operated as a single entity

  5. a small tactical unit of artillery usually consisting of two or more troops, each of two, three or four guns

  6. mainly British

    • a large group of cages for intensive rearing of poultry

    • (as modifier): battery hens

  7. psychol a series of tests

  8. chess two pieces of the same colour placed so that one can unmask an attack by the other by moving

  9. the percussion section in an orchestra

  10. baseball the pitcher and the catcher considered together

Origin of battery

C16: from Old French batterie beating, from battre to beat, from Latin battuere

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for battery


[ bătə-rē ]

  1. A device containing an electric cell or a series of electric cells storing energy that can be converted into electrical power (usually in the form of direct current). Common household batteries, such as those used in a flashlight, are usually made of dry cells (the chemicals producing the current are made into a paste). In other batteries, such as car batteries, these chemicals are in liquid form.

a closer look

A battery stores chemical energy, which it converts to electrical energy. A typical battery, such as a car battery, is composed of an arrangement of galvanic cells. Each cell contains two metal electrodes, separate from each other, immersed within an electrolyte containing both positive and negative ions. A chemical reaction between the electrodes and the electrolyte, similar to that found in electroplating, takes place, and the metals dissolve in the electrolyte, leaving electrons behind on the electrodes. However, the metals dissolve at different rates, so a greater number of electrons accumulate at one electrode (creating the negative electrode) than at the other electrode (which becomes the positive electrode). This gives rise to an electric potential between the electrodes, which are typically linked together in series and parallel to one another in order to provide the desired voltage at the battery terminals (12 volts, for example, for a car battery). The buildup of charge on the electrodes prevents the metals from dissolving further, but if the battery is hooked up to an electric circuit through which current may flow, electrons are drawn out of the negative electrodes and into the positive ones, reducing their charge and allowing further chemical reactions.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for battery


A device that produces an electric current (see also current) by harnessing the chemical reactions that take place within its cells.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.