Checking saved dictionary data and trusted language sources. This will stop automatically if a source does not respond.
Pronunciation varies by accent · noun
(physics, chemistry) an exotic atom equivalent to a hydrogen atom with the proton replaced by a pion.
Use pionium when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Pionium means (physics, chemistry) an exotic atom equivalent to a hydrogen atom with the proton replaced by a pion.
Common synonyms include pi-mu atom.
The opposite depends on the specific sense.
Use pionium 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.