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triac

American

[trahy-ak] / ˈtraɪ æk /

noun

Electronics.

a type of thyristor designed for electronic control of the current supplied to a circuit, used especially in dimmers for lighting systems.

1960–65; tri(ode) + A.C. alternating current

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023