pionium

English

Etymology

Etymology tree

English pion

Proto-Indo-European *-(i)yós

Proto-Italic *-ijos

Proto-Italic *-ios

Old Latin -ios

Latin -iusnom.

Latin -iumlbor.

English -ium

English pionium

From pion + -ium.

Noun

pionium (plural pioniums)

1. (physics, chemistry) an exotic atom equivalent to a hydrogen atom with the proton replaced by a pion
2. (physics) an onium where the bound antiparticle-particle pair is a pion and an antipion.

Synonyms

• (exotic atom): pi-mu atom

Translations

atom

• Italian: pionio m