a state of the central US: consists of the Great Plains in the east and the Rockies in the west; drained chiefly by the Colorado, Arkansas, South Platte, and Rio Grande Rivers. Capital: Denver. Pop: 4 550 688 (2003 est). Area: 269 998 sq km (104 247 sq miles)Abbreviation: Colo., (with zip code)CO
a river in SW North America, rising in the Rocky Mountains and flowing southwest to the Gulf of California: famous for the 1600 km (1000 miles) of canyons along its course. Length: about 2320 km (1440 miles)
a river in central Texas, flowing southeast to the Gulf of Mexico. Length: about 1450 km (900 miles)
a river in central Argentina, flowing southeast to the Atlantic. Length: about 850 km (530 miles)
Word Origin for Colorado
Spanish, literally: red, from Latin colōrātus coloured, tinted red; see colour
U.S. state (organized as a territory 1861, admitted as a state 1876), named for the river, Spanish Rio Colorado, from colorado "ruddy, reddish," literally "colored," past participle of colorar "to color, dye, paint," from Latin colorare (see coloration).