Columbia Encyclopedia
Search results
500 results found
acetic acid
(Encyclopedia)acetic acid əsēˈtĭk [key], CH3CO2H, colorless liquid that has a characteristic pungent odor, boils at 118℃, and is miscible with water in all proportions; it is a weak organic carboxylic acid (s...Daguerre, Louis Jacques Mandé
(Encyclopedia)Daguerre, Louis Jacques Mandé lwē zhäk mäNdāˈ dägârˈ [key], 1789–1851, French scene painter and physicist, inventor of the daguerreotype, a photograph produced on a silver-coated copper pla...Aberdeen, cities, United States
(Encyclopedia)Aberdeen ăbˈərdēnˌ [key]. 1 Town (2020 pop. 15,935), Harford co., NE Md., in a farm region; inc. 1892. Just south, on Chesapeake Bay, is the U.S. army's huge Aberdeen...formaldehyde
(Encyclopedia)formaldehyde fôrmălˈdəhīdˌ [key], HCHO, the simplest aldehyde. It melts at −92℃, boils at −21℃, and is soluble in water, alcohol, and ether; at STP, it is a flammable, poisonous, colorle...Black Country
(Encyclopedia)Black Country, highly industrialized region, historically mostly in Staffordshire but partly in Worcestershire and Warwickshire, W central England. It includes Dudley, Rowley Regis (see Warley), Tipto...thallium
(Encyclopedia)thallium thălˈēəm [key], metallic chemical element; symbol Tl; at. no. 81; interval in which at. wt. ranges 204.382–204.385; m.p. 303.5℃; b.p. about 1,457℃; sp. gr. 11.85 at 20℃; valence +...Taurus, mountain chain, Turkey
(Encyclopedia)Taurus tôrōsˈ [key], mountain chain, S Turkey, extending c.350 mi (560 km) roughly parallel to the Mediterranean coast of S Asia Minor. It forms the southern border of the Anatolian plateau. Its no...Narbonne
(Encyclopedia)Narbonne närbônˈ [key], city (1990 pop. 47,086), Aude dept., S France, near the Mediterranean coast. It is the commercial center of a wine-growing region and an industrial city producing sulfur, co...Nayarit
(Encyclopedia)Nayarit näyärētˈ [key], state (1990 pop. 824,643), 10,547 sq mi (27,317 sq km), W Mexico, on the Pacific Ocean. Tepic is the capital. Mostly wild and rugged, Nayarit is broken by western spurs of ...obelisk
(Encyclopedia)obelisk ŏbˈəlĭsk [key], slender four-sided tapering monument, usually hewn of a single great piece of stone, terminating in a pointed or pyramidal top. Among the ancient Egyptians these monoliths ...Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
-
Places
+-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-
