Word.ws English Dictionary

helion

helion noun: any helium ion, the nucleus of any helium atom.

Noun (1)

helion (plural helions)

  1. (sometimes) Any helium ion, the nucleus of any helium atom.
    1. (sometimes, usually) A helium-3 ion, the nucleus of a helium-3 atom. Formula: ³He⁺².

Noun (2)

helion (plural helions)

  1. A meteoroid that arrives from the approximate direction of the Sun.

Antonyms of helion

Forms of helion

pluralhelions

Origin of helion

From helium + -on.

Words formed from helion

Questions about helion

What does helion mean?
Helion means any helium ion, the nucleus of any helium atom.
What part of speech is helion?
Helion is a noun.
What is the plural of helion?
The plural of helion is helions.

Words near helion in the dictionary

  1. heliometrically
  2. heliometry
  3. heliomicin
  4. heliomicroscopy
  5. heliomycin
  6. helion
  7. helional
  8. helionaut
  9. helionauts
  10. helionium
  11. helions

Source and license

Adapted from Wiktionary: helion (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “helion.” Word.ws, https://word.ws/helion. Based on Wiktionary, CC BY-SA 4.0.