Columbia Encyclopedia

Search results

500 results found

green flash

(Encyclopedia)green flash or emerald flash, a refractive phenomenon of the atmosphere where the top edge of the setting (or, less frequently, rising) sun will momentarily turn emerald green. The green color lasts f...

Green Mountains

(Encyclopedia)Green Mountains, range of the Appalachian Mts., extending 250 mi (402 km) from north to south and extending from S Que., Canada to Vt. Mt. Mansfield, 4,393 ft (1,339 m) high, in Vermont, is the talles...

Green party

(Encyclopedia)Green party, any of the political parties established in various countries to oppose the destructive environmental effects of many modern technologies and the economic systems and institutions that dr...

Green Revolution

(Encyclopedia)Green Revolution, term referring mainly to dramatic increases in cereal-grain yields in many developing countries beginning in the late 1960s, due largely to use of genetically improved varieties. Beg...

Green River

(Encyclopedia)Green River. 1 River, 370 mi (595 km) long, rising in central Ky. and flowing generally NW, through Mammoth Cave National Park, to the Ohio River near Evansville, Ind. Locks and dams make the Green Ri...

green turtle

(Encyclopedia)green turtle: see sea turtle.

green vitriol

(Encyclopedia)green vitriol, the heptahydrate of ferrous sulfate. ...

Gretna Green

(Encyclopedia)Gretna Green, village, Dumfries and Galloway, S Scotland, on the border with England. It was famous as a place of runaway marriages from 1754, when English marriage law was tightened, until 1856, when...

Paris green

(Encyclopedia)Paris green, also called Schweinfurt green, an extremely poisonous, bright green powder that was formerly used extensively as a pigment (e.g., in wallpaper) and that is sometimes used as an insecticid...

Bowling Green

(Encyclopedia)Bowling Green. 1 City (2020 pop. 181,616), seat of Warren co., S Ky., on the Barren River; inc. 1812. It is a shipping and marketing center for an area ...