Checking saved dictionary data and trusted language sources. This will stop automatically if a source does not respond.
Pronunciation varies by accent · noun
(particle physics, uncountable) The antimatter equivalent of hydrogen, consisting of an antiproton and a positron (antielectron)..
Use antihydrogen when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Antihydrogen means (particle physics, uncountable) The antimatter equivalent of hydrogen, consisting of an antiproton and a positron (antielectron)..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use antihydrogen where its definition matches the intended context.
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.