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Meaning of down quark | Babel Free

Noun CEFR B2

Definitions

A quark having a fractional electric charge of -1/3 and a mass of about 4 to 8 MeV.
particle
A quark having a fractional electric charge of -1/3 and a mass of about 4 to 8 MeV. Symbol: d
particle
Symbol: d
particle

CEFR level

B2

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

See also

down round down someone's alley Down St Mary down start down style Down syndrome