Term: charm quark: a quark with an electric charge of +2/3 and a mass 2900 times that of an electron and a charm of +1
Broader: quark: (physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3 | Unrelated: pure absence: an absence seizure without other complications; followed by 3-per-sec brainwave spikes