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| a sequence of changing states that produces a final state identical to the original one; one of a succession of periodically recurring events |
| radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x-rays, and gamma rays |
| flavor (flā'vər) Pronunciation Key
Any of six classifications of quark varieties, distinguished by mass and electric charge. The flavors have the names up, down, strange, charm, top, and bottom. Protons in atomic nuclei are composed of two up quarks and one down quark, while neutrons consist of one up quark and two down quarks. The flavor of a quark may be changed in interactions involving the weak force. |
flavor
in particle physics, property that distinguishes different members in the two groups of basic building blocks of matter, the quarks and the leptons. There are six flavours of subatomic particle within each of these two groups: six leptons (the electron, the muon, the tau, the electron-neutrino, the muon-neutrino, and the tau-neutrino), and six quarks (designated up, down, charm, strange, top, and bottom).
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