charmed quark

noun

Physics.

1. the quark having electric charge 2/3 times the elementary charge and charm C = +1. It is more massive than the up, down, and strange quarks.

Example Sentences

The first three flavors had been known since the 1960s but the charmed quark was discovered only in 1974, the bottom in 1977, and the top in 1995.

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