Term: strange quark: a quark with an electric charge of -1/3 and a mass 988 times that of an electron and a strangeness 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: nelson: any of several wrestling holds in which an arm is passed under the opponent's arm from behind and the hand exerts pressure on the back of the neck