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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...cgs system
(Encyclopedia)cgs system, system of units of measurement based on the metric system and having the centimeter of length, the gram of mass, and the second of time as its fundamental units. Other cgs units are the dy...mks system
(Encyclopedia)mks system, system of units of measurement based on the metric system and having the meter of length, the kilogram of mass, and the second of time as its fundamental units. Other mks units include the...International System of Units
(Encyclopedia)International System of Units, officially called the Système International d'Unités, or SI, system of units adopted by the 11th General Conference on Weights and Measures (1960). It is based on the ...decimal system
(Encyclopedia)decimal system [Lat.,=of tenths], numeration system based on powers of 10. A number is written as a row of digits, with each position in the row corresponding to a certain power of 10. A decimal point...Bertillon system
(Encyclopedia)Bertillon system bərtĭlˈyən [key], first scientific method of criminal identification, developed by the French criminologist Alphonse Bertillon (1853–1914). The system, based on the classificati...lymphatic system
(Encyclopedia)CE5 Lymphatic system lymphatic system lĭmfătˈĭk [key], network of vessels carrying lymph, or tissue-cleansing fluid, from the tissues into the veins of the circulatory system. The lymphatic sy...nervous system
(Encyclopedia)CE5 Nerve cell CE5 Nervous system nervous system, network of specialized tissue that controls actions and reactions of the body and its adjustment to the environment. Virtually all members of ...monitorial system
(Encyclopedia)monitorial system, method of elementary education devised by British educators Joseph Lancaster and Andrew Bell during the 19th cent. to furnish schooling to the underprivileged even under conditions ...geocentric system
(Encyclopedia)geocentric system: see Ptolemaic system. ...Browse by Subject
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