Dictionary.com

triac

[ trahy-ak ]
/ ˈtraɪ æk /
Save This Word!

noun Electronics.

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

QUIZZES

THINK YOU’VE GOT A HANDLE ON THIS US STATE NICKNAME QUIZ?

Did you ever collect all those state quarters? Put them to good use on this quiz about curious state monikers and the facts around them.
Question 1 of 8
Mississippi’s nickname comes from the magnificent trees that grow there. What is it?

Origin of triac

1960–65; tri(ode) + A.C. alternating current
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
See Today's Synonym