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spinel

(Encyclopedia)spinel, magnesium aluminum oxide, MgAl2O4, a mineral crystallizing in the isometric system, usually as octahedrons. It occurs as an accessory mineral in basic igneous rocks, in aluminum-rich metamorph...

Boisbrûlés

(Encyclopedia)Boisbrûlés bwäbrülāˈ [key] [Fr.,=burnt wood], name given the descendants of the fur traders and native peoples in W Canada, because of their dark complexion. The boisbrûlés, or brûlés, were ...

mango

(Encyclopedia)mango măngˈgō [key], evergreen tree of the Anacardiaceae (sumac family), native to tropical E Asia and now grown in both hemispheres. The chief species, Mangifera indica, is believed to have been c...

chlorophyll

(Encyclopedia)CE5 chlorophyll klôrˈəfĭlˌ [key], green pigment that gives most plants their color and enables them to carry on the process of photosynthesis. Chemically, chlorophyll has several similar forms...

blackbird

(Encyclopedia)blackbird, common name in North America of a perching bird allied to the bobolink, the meadow lark, the oriole, and the grackle and belonging to the family Icteridae. The European blackbird, Turdus me...

Mabinogion

(Encyclopedia)Mabinogion măbĭnōˈgēən [key], title given to a collection of medieval Welsh stories. Scholars differ as to the meaning of the word mabinogion: some think it to be the plural of the Welsh word ma...

Atchafalaya

(Encyclopedia)Atchafalaya əchăˈfəlīˌə [key], navigable river, c.170 mi (270 km) long, S central La. The Atchafalaya meanders south, in a former channel of the Mississippi, to the Gulf of Mexico. A distributa...

Kawasaki, Tomisaku

(Encyclopedia)Kawasaki, Tomisaku, 1925–2020, Japanese pediatrician. He joined (1950–90) what is now the Japanese Red Cross Medical Center, Tokyo, and became director of pediatrics there in 1973. In 1961 he enco...

Arabian Sea

(Encyclopedia)Arabian Sea, ancient Mare Erythraeum, northwest part of the Indian Ocean, lying between Arabia and India. The Gulf of Aden, extended by the Red Sea, and the Gulf of Oman, extended by the Persian Gulf,...

Dionne, Marcel

(Encyclopedia)Dionne, Marcel, 1951–, Canadian hockey player, b. Drummondville, Quebec. A talented offensive center, he was drafted (1971) by the National Hockey League (NHL)'s Detroit Red Wings. Moving to the Los...