circuit board
Americannoun
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Electronics. a sheet made up of layers of conductive and insulating material used for the mounting and interconnection, often by a printed circuit, of components in electronic equipment.
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Also called card. Computers. a piece of fiberglass or other material upon which chips can be mounted to perform specific functions.
noun
Etymology
Origin of circuit board
First recorded in 1945–50
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Dead batteries yield lithium, cobalt and nickel; LED screens contain germanium; circuit boards hold platinum and palladium; hard disks store rare earths -- e‑waste has long been described as a "gold mine" for critical minerals.
From Barron's
Qnity also makes flexible laminates, which allow circuits to bend and fit on printed circuit boards.
From MarketWatch
Li taught himself computer programming and learned how to design a circuit board.
From Barron's
The biggest data centers each require tens of thousands of metric tons of copper for all the wires, busbars, circuit boards, transformers and other electrical components housed there.
Copper has uses including piping, circuit boards and wiring.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
