# dihydrogen

> English word · Noun · IPA /ˌdaɪˈhaɪdɹəd͡ʒ(ə)n/

## Definitions
1. The divalent radical formed from two separate hydrogen atoms or ions.
2. Describing a dihydrogen bond.
3. The diatomic hydrogen molecule H₂.

## Etymology
From di- + hydrogen.

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