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hadronic atom
Science; General science
A hydrogenlike system that consists of a strongly interacting particle (hadron) bound in the Coulomb field and in orbit around any ordinary nucleus. The kinds of hadronic atoms ...
protostar
Science; General science
A hydrostatic sphere of gas in the process of becoming a star. A protostar forms by the gravitational collapse of a dense core within a giant cloud of dust and molecular gas ...
apophyllite
Science; General science
A hydrous calcium potassium silicate containing fluorine. The composition is variable but approximates to KFCa 4 (Si 2 O 5 ) 4 · 8H 2 O. It resembles the zeolites, with which it ...
chloritoid
Science; General science
A hydrous iron aluminum silicate mineral with an ideal formula of Fe 2 2+ Al 4 O 2 (SiO 4 ) 2 (OH) 4 . Chloritoid occurs as platy, black or dark green crystals, rarely more than ...
weakly interacting massive particle (WIMP)
Science; General science
A hypothetical elementary particle that might make up most of the matter in the universe, and that is also predicted to exist in supersymmetry theory. Most matter is detected only ...
higgs boson
Science; General science
A hypothetical massive scalar elementary particle, the avatar (embodiment) of electroweak symmetry breaking in the Glashow–Weinberg–Salam theory. Interactions with the Higgs boson ...
carnot cycle
Science; General science
A hypothetical thermodynamic cycle originated by Sadi Carnot and used as a standard of comparison for actual cycles. The Carnot cycle shows that, even under ideal conditions, a ...
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