antihydrogen
noun
antihydrogen is a noun meaning “The antimatter equivalent of hydrogen, consisting of an antiproton and a positron (antielectron)” (English Wiktionary, September 2026). It is spelled A-N-T-I-H-Y-D-R-O-G-E-N, and it appears about once in every 78 million words in written English (wordfreq, 2021 data). The plural of antihydrogen is antihydrogens.
What does antihydrogen mean?
noun
- 1
The antimatter equivalent of hydrogen, consisting of an antiproton and a positron (antielectron).
- 2
An atom of the antimatter equivalent of hydrogen.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of antihydrogen
- antihydrogens plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is antihydrogen?
Antihydrogen appears about once in every 78 million words in written English, the 279,513th 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).
Antihydrogen in Spanish, French, German and Portuguese
In the sense antimatter equivalent of hydrogen:
| Language | Words |
|---|---|
| French | antihydrogène |
| German | Antiwasserstoff |
| Portuguese | anti-hidrogênio, anti-hidrogénio |
| Spanish | antihidrógeno |
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 antihydrogen come from?
From anti- + hydrogen.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).