Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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circuit board a backing, panel, or card, often insulated, on which electronic circuits and other components are set or imprinted.
circuit breaker a switch or other device that automatically breaks an electric circuit when too much electricity flows through it.
circuit court a court that can hold sessions in different locations in a judicial district. [2 definitions]
circuit rider a clergyman who travels to preach in different parts of an area or district.
closed circuit a transmission circuit for television with a limited number of reception stations connected to it by cable. [2 definitions]
integrated circuit a complete electronic circuit, comprising circuit elements in a complex interconnection, imprinted or etched on a tiny chip of semiconductor material.
open circuit an electrical circuit that is broken and carries no current.
printed circuit an electric circuit in which the interconnections are formed not by wires but by lines or strips of a conductive material printed, etched, or otherwise deposited on an insulating sheet.
short circuit a usu. inadvertent low-resistance alternate path for an electrical current, often resulting in damage.
short-circuit to disrupt an electrical circuit, usu. accidentally, by providing a low-resistance alternate path for current, often resulting in sparks or electrical damage. [3 definitions]