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fusor

/ˈfjuːzɚ/noun

fusor is a noun meaning “A coin melter” (English Wiktionary, September 2026). It is spelled F-U-S-O-R, and it appears about once in every 85 million words in written English (wordfreq, 2021 data). The plural of fusor is fusors.

What does fusor mean?

noun

  1. 1

    A coin melter.

  2. 2

    A celestial body that, through self-gravity, is able to perform nuclear fusion within its core, at any point in its life. These include stars, stellar remnants, and brown dwarfs.

  3. 3

    An electrostatic inertial confinement fusion apparatus. A device that causes nuclear fusion through electrostatic field compression of the fusion fuel.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How do you pronounce fusor?

  • UK /ˈfjuːzə/
  • US /ˈfjuːzɚ/

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Forms of fusor

  • fusors plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is fusor?

Fusor appears about once in every 85 million words in written English, the 293,966th 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).

Fusor in Spanish, French, German and Portuguese

In the sense celestial body that, through self-gravity, can perform nuclear fusion in its cor:

LanguageWords
Frenchfuseur

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.

Where does fusor come from?

From Latin fūsor, from fundō + -tor. By surface analysis, fuse + -or. The astronomical sense was coined by Gibor Basri, Professor of Astronomy at the University of California, Berkeley, at the 2003 IAU conference.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).