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down quark

noun — 2 senses

down quark

noun
1

Natural sciences, Physical sciences, Physics Particle A quark having a fractional electric charge of -1/3 and a mass of about 4 to 8 MeV.

› A quark having a fractional electric charge…

2

Natural sciences, Physical sciences, Physics Particle Symbol: d

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.