Definitions
There is 1 meaning of the phrase
Up Quark.
Up Quark - as a noun
A stable quark with an electric charge of +2/3 and a mass 607 times that of an electron
Example Sentences
"The up quark is one of the six types of quarks."
"The up quark has a charge of +2/3."
"Scientists discovered the existence of the up quark in the 1960s."
"The up quark is one of the fundamental particles in the standard model of particle physics."
"The up quark is classified as an elementary particle."
