# helion

> English word · Noun

## Definitions
1. Any helium ion, the nucleus of any helium atom.
2. Any helium ion, the nucleus of any helium atom.

## Etymology
From helium + -on.

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