ca·​pac·​i·​tor | \ kə-ˈpa-sə-tər How to pronounce capacitor (audio) \

Definition of capacitor

: a device that is used to store electrical energy

Examples of capacitor in a Sentence

Recent Examples on the Web That dendrite collects the incoming electrical signals and sends them to a capacitor which…like a neuronal cell body…integrates the information. Karen Hopkin, Scientific American, 30 June 2022 Perhaps while relaxing on the terrace, your Father’s Day party can brainstorm the next flux capacitor. Los Angeles Times, 10 June 2022 Looking at the basic specs of the Magneto, there's an axial flux electric motor (hold the capacitor) that spins up to 5,250 rpm. Jim Resnick, Ars Technica, 15 Apr. 2022 The DeLorean Time Machine most people are familiar with is the one from the first movie, and the Lego version includes a light-up flux capacitor and a box of plutonium to re-create scenes from that movie. Sebastian Blanco, Car and Driver, 20 Mar. 2022 So, the team designed the electronics to have a capacitor to store some charge at nighttime. Elizabeth Gamillo, Smithsonian Magazine, 23 Mar. 2022 As the wearer sweats on the strip, electrical energy gets stored in a small capacitor and can be discharged to devices when needed. Rob Nikolewski, San Diego Union-Tribune, 24 Feb. 2022 The 85 mph in a shopping mall parking lot was about as real as a flux capacitor, though. Mark Heim |, al, 14 Feb. 2022 Lastly, nearly 35 capacitor banks are being installed to help ensure that all customers served by a single power line receive the same flow of safe, reliable power by evenly distributing electricity down the line. John Benson, cleveland, 2 Feb. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'capacitor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of capacitor

1925, in the meaning defined above

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Time Traveler for capacitor

Time Traveler

The first known use of capacitor was in 1925

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Dictionary Entries Near capacitor



capacitor motor

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Cite this Entry

“Capacitor.” Dictionary, Merriam-Webster, Accessed 27 Sep. 2022.

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More Definitions for capacitor


ca·​pac·​i·​tor | \ kə-ˈpas-ət-ər How to pronounce capacitor (audio) \

Medical Definition of capacitor

: a device giving capacitance and usually consisting of conducting plates or foils separated by thin layers of dielectric (as air or mica) with the plates on opposite sides of the dielectric layers oppositely charged by a source of voltage and the electrical energy of the charged system stored in the polarized dielectric

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