Columbia Encyclopedia

Search results

500 results found

Yugoslav literature

(Encyclopedia)Yugoslav or South Slav literature, literature written in Serbo-Croatian, Slovenian, and, especially after World War II, Macedonian languages. The Serbian and Croatian literary languages are similar an...

nickel

(Encyclopedia)nickel, metallic chemical element; symbol Ni; at. no. 28; at. wt. 58.6934; m.p. about 1,453℃; b.p. about 2,732℃; sp. gr. 8.902 at 25℃; valence 0, +1, +2, +3, or +4. Nickel is a hard, malleable, ...

ray, in zoology

(Encyclopedia)ray, extremely flat-bodied cartilaginous marine fish, related to the shark. The pectoral fins of most rays are developed into broad, flat, winglike appendages, attached all along the sides of the head...

recycling

(Encyclopedia)recycling, the process of recovering and reusing waste products—from household use, manufacturing, agriculture, and business—and thereby reducing their burden on the environment. During World War ...

Toronto

(Encyclopedia)Toronto tərŏnˈtō [key], city (1998 est pop. 2,400,000), provincial capital, S Ont., Canada, on Lake Ontario. Toronto is the largest city in Canada and since the 1970s has been one of the fastest-c...

credit card

(Encyclopedia)credit card, device used to obtain consumer credit at the time of purchasing an article or service. Credit cards may be issued by a business, such as a department store or an oil company, to make it e...

citizen

(Encyclopedia)citizen, member of a state, native or naturalized, who owes allegiance to the government of the state and is entitled to certain rights. Citizens may be said to enjoy the most privileged form of natio...

European Space Agency

(Encyclopedia)European Space Agency (ESA), multinational agency dedicated to the promotion, for exclusively peaceful purposes, of cooperation among European states in space research and technology. Member states in...

drone

(Encyclopedia)drone or remotely piloted vehicle, a pilotless craft guided by remote control. Aircraft, ships, and land vehicles can be designed or outfitted as drones. Underwater vessels—both piloted and pilotles...

butterfly

(Encyclopedia)butterfly, any of a large group of insects found throughout most of the world; with the moths, they comprise the order Lepidoptera. There are about 12 families of butterflies. Most adult moths and but...