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triac

American  
[trahy-ak] / ˈtraɪ æk /

noun

Electronics.

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

Etymology

Origin of triac

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

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.