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sinus

(Encyclopedia) CE5 Sinuses of the face sinus, cavity or hollow space in the body, usually filled with air or blood. In humans the paranasal sinuses, mucus-lined cavities in the bones of the face…

Leonov, Aleksei Arkhipovich

(Encyclopedia) Leonov, Aleksei ArkhipovichLeonov, Aleksei Arkhipovichŭlˌyĭksyāˈ ärkhˌyĭpôˈvyĭch [key], 1934–2019, Soviet-Russian cosmonaut and military officer. While serving as copilot of Voskhod 2…

myxedema

(Encyclopedia) myxedemamyxedemamĭksədēˈmə [key], condition associated with severe hypothyroidism and lack of thyroid hormone in the adult. In the child it is known as cretinism. Symptoms include a…

hegemony

(Encyclopedia) hegemonyhegemonyhĭjĕmˈənē, hē–, hĕjˈəmōˌnē, hĕgˈə– [key], [Gr.,=leadership], dominance, originally of one Greek city-state over others, the term has been extended to refer to the…

bud

(Encyclopedia) bud, in lower plants and animals, a protuberance from which a new organism or limb develops; in seed plants, a miniaturized twig bearing compressed rudimentary lateral stems (branches…

Voice of America

(Encyclopedia) Voice of America, broadcasting service of the United States Information Agency, est. 1942. Originally set up as a means of fighting the cold war, the Voice of America produces and…

Trás-os-Montes

(Encyclopedia) Trás-os-MontesTrás-os-Montesträˈz&oobreve;zhmônˌtĕsh [key], former province of NE Portugal, comprising the districts of Bragança and Vila Real. The capital was Bragança. It is now…

skin

(Encyclopedia) CE5 Cross section of skin skin, the flexible tissue (integument) enclosing the body of vertebrate animals. In humans and other mammals, the skin operates a complex organ of…

Kennan, George Frost

(Encyclopedia) Kennan, George Frost, 1904–2005, U.S. diplomat and historian, b. Milwaukee, Wis., grad. Princeton, 1925. A brilliant strategist and among the most influential and intellectual…

Point Four program

(Encyclopedia) Point Four program, U.S. foreign aid project aimed at providing technological skills, knowledge, and equipment to poor nations throughout the world. The program also encouraged the…