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noun

capacitor

kuh-PA-sih-tuh

Capacitor (noun) means an electronic component that stores electrical energy, typically made from two conductive plates separated by an insulating layer. Example: “The circuit uses a capacitor to smooth out voltage spikes.”

noun
1
An electronic component that stores electrical energy, typically made from two conductive plates separated by an insulating layer.
"The circuit uses a capacitor to smooth out voltage spikes."

How to use capacitor

Learner’s notes

In plain EnglishAn electrical part that stores and releases electrical charge.

Easily confused with

Word forms

capacitors plural

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Fill the gap

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The circuit uses a _____ to smooth out voltage spikes.

Etymology

Formed from "capacity" plus "-or." It replaced the older word "condenser" in the 1920s to avoid confusion with steam condensers.

· First attested 1920

Class of 1920 capacitor joined the language around 1920.
See the full Class of 1920 →
condenser capacitance electrical condenser

Related words

Rhymes for capacitor

See all rhymes for capacitor →

Frequently asked questions

What does “capacitor” mean?

The word “capacitor” means an electronic component that stores electrical energy, typically made from two conductive plates separated by an insulating layer. In plain terms, an electrical part that stores and releases electrical charge.

How do you pronounce “capacitor”?

“Capacitor” is pronounced kuh-PA-sih-tuh (/kəˈpæ.sə.tɚ/ in IPA).

How do you use “capacitor” in a sentence?

Here is “capacitor” used in a sentence: “The circuit uses a capacitor to smooth out voltage spikes.”

What part of speech is “capacitor”?

“Capacitor” is a noun.

Where does the word “capacitor” come from?

The word “capacitor” dates back to around 1920. Formed from "capacity" plus "-or." It replaced the older word "condenser" in the 1920s to avoid confusion with steam condensers.

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Definitions: FreeDict original editorial