We found 8 dictionaries that define the word variac:

General (3 matching dictionaries)

1. Variac: Merriam-Webster
2. variac: Wiktionary
3. Variac: Wikipedia, the Free Encyclopedia

Art (1 matching dictionary)

4. Technical Glossary of Theatre Terms (No longer online)

Computing (1 matching dictionary)

5. Variac: Encyclopedia

Medicine (1 matching dictionary)

6. Variac: Medical dictionary

Tech (2 matching dictionaries)

7. Rane Professional Audio Reference (No longer online)
8. Sweetwater Music (No longer online)

Definitions from Wiktionary (variac) ▸ noun:  A type of variable autotransformer in which the output voltage is varied by twisting a dial. Similar: variator, autotransformer, relay cylinder, resolver, vibrator, commutator, rotary switch, velodyne, diverter, variable, more... Opposite: constant, steady, unchanging ▸ Words similar to variac ▸ Usage examples for variac ▸ Idioms related to variac ▸ Wikipedia articles (New!) ▸ Popular adjectives describing variac ▸ Words that often appear near variac ▸ Rhymes of variac ▸ Invented words related to variac