autotransformer
noun
autotransformer is a noun meaning “A transformer with a single winding, its output being taken from taps” (English Wiktionary, September 2026). It is spelled A-U-T-O-T-R-A-N-S-F-O-R-M-E-R, and it appears about once in every 40 million words in written English (wordfreq, 2021 data). The plural of autotransformer is autotransformers.
What does autotransformer mean?
noun
- 1
A transformer with a single winding, its output being taken from taps.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce autotransformer?
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-autotransformer.wav, Wikimedia Commons (author and licence on each file's page).
Forms of autotransformer
- autotransformers plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is autotransformer?
Autotransformer appears about once in every 40 million words in written English, the 194,306th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Autotransformer in Spanish, French, German and Portuguese
In the sense Translations:
| Language | Words |
|---|---|
| German | Spartransformator, Autotransformator |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.