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Duluth

(Encyclopedia) Duluth Duluth dəl&oomacr;thˈ [key], city (2020 pop. 86,697), seat of St. Louis co., NE Minn., at…

hardening

(Encyclopedia) hardening, in metallurgy, treatment of metals to increase their resistance to penetration. A metal is harder when it has small grains, which result when the metal is cooled rapidly.…

Anhui

(Encyclopedia) Anhui or Anhwei Anhwei both: änˈhwāˈ [key], province, c.55,000 sq mi (142,450 sq km), E central China. Hefei is the capital. Anhui may be divided into two climatic…

Pyongyang

(Encyclopedia) PyongyangPyongyangpēyŭngˈyängˈ [key], Chin. Pingyang, Jap. Heijo, city (1993 pop. 2,741,260), capital of North Korea, SW North Korea, on a high bluff above the Taedong River. It is a…

selenium

(Encyclopedia) seleniumseleniumsəlēˈnēəm [key], nonmetallic chemical element; symbol Se; at. no. 34; at. wt. 78.96; m.p. 217℃; b.p. about 685℃; sp. gr. 4.81 at 20℃; valence −2, +4, or +6. Selenium is…

cerium

(Encyclopedia) ceriumceriumsērˈēəm [key] [from the asteroid Ceres], metallic chemical element; symbol Ce; at. no. 58; at. wt. 140.116; m.p. 799℃; b.p. 3,426℃; sp. gr. 6.77 at 25℃; valence +3 or +4.…

Murcia, city, Spain

(Encyclopedia) Murcia, city (1990 pop. 322,911), capital of the autonomous community and coextensive prov. of Murcia, SE Spain, on the Segura River. The city lies in one of the finest irrigated…

Montluçon

(Encyclopedia) MontluçonMontluçonmôNlüsôNˈ [key], town (1990 pop. 46,660), Allier dept., central France, on the Cher River. Industry developed in the 19th cent. because of nearby coal fields in…

Mie

(Encyclopedia) MieMiemēˈā [key], prefecture (1990 pop. 1,792,542), S Honshu, Japan, on Ise Bay. Tsu (the capital), Ise (a major Shintoist center), Yokkaichi, Matsusaka, and Kuwana are the chief…

Niigata

(Encyclopedia) NiigataNiigatanēˈgätä [key], city (1990 pop. 486,097), capital of Niigata prefecture, N Honshu, Japan, on the Sea of Japan at the mouth of the Shinano River. It is the main port for…