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Meaning of pi-minus | Babel Free

Noun CEFR B2

Definitions

The negative pion, composed of a down quark and an anti-up quark.

particle

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

pi-minus meson pi-plus pi-plus meson PIA Pia carry pia mater