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metric system
(Encyclopedia) CE5 metric system, system of weights and measures planned in France and adopted there in 1799; it has since been adopted by most of the technologically developed countries of the world. It is based...Saint-Cloud
(Encyclopedia)Saint-Cloud săN-klo͞oˈ [key], town (1990 est. pop. 28,673), Hauts-de-Seine dept., N central France, a suburb W of Paris on the Seine River. It is a residential town and resort, with a famous racetr...molecular weight
(Encyclopedia)molecular weight, weight of a molecule of a substance expressed in atomic mass units (amu). The molecular weight may be calculated from the molecular formula of the substance; it is the sum of the ato...atomic weight
(Encyclopedia)atomic weight, mean (weighted average) of the masses of all the naturally occurring isotopes of a chemical element, as contrasted with atomic mass, which is the mass of any individual isotope. Althoug...Troyes
(Encyclopedia)Troyes trwä [key], city (1990 pop. 60,755), capital of Aube dept., NE France, on the Seine River. It is an industrial town. Hosiery is the main product. Troyes became an episcopal see in the 4th cent...centimeter
(Encyclopedia)centimeter sĕnˈtĭmēˌtər [key], abbr. cm, unit of length equal to 0.01 meter, the basic unit of length in the metric system. The centimeter is the unit of length in the cgs system. It is approxim...Berzelius, Jöns Jakob, Baron
(Encyclopedia)Berzelius, Jöns Jakob, Baron bərzēˈlēəs; Swed. yöns yäˈkôp bĕrsāˈlĭəs [key], 1779–1848, Swedish chemist, M.D. Univ. of Uppsala, 1802. He was noted for his work as teacher at the medic...weber, unit of magnetic flux
(Encyclopedia)weber vāˈbər, wē–, wĕbˈər [key] [for W. E. Weber], abbr. Wb, unit of magnetic flux in the mks system of weights and measures; 1 Wb is equal to 1 volt-second. The weber per square meter, calle...krypton
(Encyclopedia)krypton krĭpˈtŏn [key] [Gr.,=hidden], gaseous chemical element; symbol Kr; at. no. 36; at. wt. 83.798; m.p. −156.6℃; b.p. −152.3℃; density 3.73 grams per liter at STP; valence usually 0. Kr...equivalent weight
(Encyclopedia)equivalent weight. The equivalent weight of an element or radical is equal to its atomic weight or formula weight divided by the valence it assumes in compounds. The unit of equivalent weight is the a...Browse by Subject
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