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endocrine system
(Encyclopedia)endocrine system ĕnˈdəkrĭn [key], body control system composed of a group of glands that maintain a stable internal environment by producing chemical regulatory substances called hormones. The end...digestive system
(Encyclopedia)CE5 Digestive system digestive system, in the animal kingdom, a group of organs functioning in digestion and assimilation of food and elimination of wastes. Virtually all animals have a digestive ...circulatory system
(Encyclopedia)CE5 Circulatory system circulatory system, group of organs that transport blood and the substances it carries to and from all parts of the body. The circulatory system can be considered as compose...Special Drawing Rights
(Encyclopedia)Special Drawing Rights (SDRs), type of international monetary reserve currency established (1968) by the International Monetary Fund (IMF). Created in response to worries concerning the limitations of...Witteveen, H. Johannes
(Encyclopedia)Witteveen, H. Johannes (Hendrikus Johannes Witteveen), 1921–2019, Dutch economist and political leader. After receiving his doctorate from the Netherlands School of Economics (now Erasmus Univ. Rott...International Telecommunication Union
(Encyclopedia)International Telecommunication Union (ITU), specialized agency of the United Nations, with headquarters at Geneva. It was created in 1934 as a result of the merging of the International Telegraph Uni...cooling system
(Encyclopedia)cooling system: see air conditioning; internal-combustion engine; refrigeration. ...urinary system
(Encyclopedia)CE5 Urinary system urinary system, group of organs of the body concerned with excretion of urine, that is, water and the waste products of metabolism. In humans, the kidneys are two small organs s...International Peace Bureau
(Encyclopedia)International Peace Bureau (IPB), organization est. 1891 in Bern, Switerland, by Fredrik Bajer and other members of the third World Peace Congress. Dedicated to promoting world peace, it brought toget...Geophysical Year, International
(Encyclopedia)Geophysical Year, International: see International Geophysical Year. ...Browse by Subject
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