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closed circuit

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noun Electricity.

a circuit without interruption, providing a continuous path through which a current can flow.

QUIZZES

QUIZ YOURSELF ON “THEIR,” “THERE,” AND “THEY’RE”

Are you aware how often people swap around “their,” “there,” and “they’re”? Prove you have more than a fair grasp over these commonly confused words.
Question 1 of 7
Which one of these commonly confused words can act as an adverb or a pronoun?
Compare open circuit.

Origin of closed circuit

First recorded in 1820–30

OTHER WORDS FROM closed circuit

closed-circuit, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for closed circuit

British Dictionary definitions for closed circuit

closed circuit

noun

a complete electrical circuit through which current can flow when a voltage is appliedCompare open circuit
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 closed circuit

closed circuit

An electric circuit through which current can flow in an uninterrupted path. Compare open circuit.
A television system in which the signal is usually sent by cable to a limited number of receivers.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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