Longman Dictionary of Contemporary English
Wiktionary
n. A board on which electronic components and their interconnecting circuits are mounted or etched
WordNet
n. a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities [syn: circuit card, board, card]
Usage examples of "circuit board".
Every single circuit board in every slot of every level of every rack in the whole place has a pair of copper wires coming out of it to send an alarm signal in the event that the board fails.
It really looked marvelous, if one admired all the complexities of an electronic circuit board.
For a few moments, the medium glittered against the circuit board, and then its base liquid evaporated and the strip seemed to disappear.
And by using only one circuit board, the engineers were able to reduce the space that electrons have to travel during calculations.
Kevin Baker put aside another relay circuit board and sat down beside her on a small workbench in the cluttered Skybolt module.
Besides, he still installed a pretty mean circuit board himself, he thought, regarding the console with proprietary pride.
Once he was out of the rain he looked around him then, seeing he was alone, reached into his pocket and extracted a small electronic circuit board, which he'd had with him all day.
The integrated circuit board was normally designed for handling precisely formed triangular pulses having a 3-volt positive amplitude and a base time ranging from 5 to 100 microseconds.
All he could really do here was lie in a cramped and uncomfortable position, holding the circuit board with his right hand, and keeping a stray flap of titanium clear of the work area with his left.
The valley floor was layered with gigantic inert mechanical forms, cylinders and cubes and stacks of circular plates laid on edge, resembling a monstrous circuit board.