Columbia Encyclopedia
Search results
74 results found
ash, in botany
(Encyclopedia)ash, in botany, any plant of the genus Fraxinus of the family Oleaceae (olive family), trees and shrubs mainly of north temperate regions. The ashes are characterized by small clusters of greenish flo...vanadium
(Encyclopedia)vanadium vənāˈdēəm [key], metallic chemical element; symbol V; at. no. 23; at. wt. 50.9415; m.p. about 1,890℃; b.p. 3,380℃; sp. gr. about 6 at 20℃; valence +2, +3, +4, or +5. Vanadium is a ...printer
(Encyclopedia)printer, device that reproduces text, images, or other data from a computer, digital camera, smartphone, or the like on paper or another medium. Impact printers, which mostly have been superseded by i...acacia
(Encyclopedia)acacia əkāˈshə [key], any plant of the large leguminous genus Acacia, often thorny shrubs and trees of the family Leguminosae (pulse family). Chiefly of the tropics and subtropics, they are cultiv...Tyre
(Encyclopedia)Tyre tīr [key], ancient city of Phoenicia, S of Sidon. It is the present-day Sur in Lebanon, a small town on a peninsula jutting into the Mediterranean from the mainland of Syria S of Beirut. It was ...rayon
(Encyclopedia)rayon, synthetic fibers made from cellulose or textiles woven from such fibers; more rayon is manufactured than any other synthetic fiber. The name was adopted (1924), in preference to “artificial s...iris, in botany
(Encyclopedia)CE5 Red iris, Iris fulva iris, common name for members of the genus Iris of the Iridaceae, a family of perennial herbs that includes the crocuses, freesias, and gladioli. The family is characteriz...sumac
(Encyclopedia)CE5 Poison sumac, Rhus vernix sumac or sumach sho͞oˈmăk, so͞oˈ– [key], common name for some members of the Anacardiaceae, a family of trees and shrubs native chiefly to the tropics but rang...poppy
(Encyclopedia)CE5 Greater celandine poppy, Chelidonium majus poppy, common name for some members of the Papaveraceae, a family composed chiefly of herbs of the Northern Hemisphere having a characteristic milky ...zirconium
(Encyclopedia)zirconium zərkōˈnēəm [key], metallic chemical element; symbol Zr; at. no. 40; at. wt. 91.224; m.p. about 1,852℃; b.p. 4,377℃; sp. gr. 6.5 at 20℃; valence +2, +3, or +4. Zirconium is a very ...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 +-
