# helicon

> English word · Noun · IPA /ˈhɛlɪkɒn/

## Definitions
1. A large tuba whose coils fit around the player's shoulders.
2. A low-frequency electromagnetic wave observed in various plasmas.

## Etymology
Probably from Ancient Greek ἕλῐξ (hélĭx) + -on, after bombardon.

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