| barycenter | (noun) (astronomy) the common center of mass around which two or more bodies revolve | - |
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| barye | (noun) the absolute unit of pressure equal to one dyne per square centimeter | Synonyms: bar absolute, microbar |
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| baryon | (noun) any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions; a hadron with a baryon number of +1 | Synonyms: heavy particle |
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| baryta | (noun) any of several compounds of barium | - |
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| barytes | (noun) a white or colorless mineral (BaSO4); the main source of barium | Synonyms: barite, barium sulphate, heavy spar |
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| barytic | (adjective) of or relating to or containing baryta | - |
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| barytone | (noun) a male singer | Synonyms: baritone |
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