# variac

> English word · Noun · IPA /ˈvɛəɹiˌæk/

## Definitions
1. A type of variable autotransformer in which the output voltage is varied by twisting a dial.

## Etymology
From the trademark Variac, presumably from variable AC.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/variac