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drongo

(Encyclopedia)drongo drŏngˈgō [key], any of the insect-eating Old World birds of the family Dicruridae. Most species have black plumage with an iridescent purple or green shimmer and long, deeply forked tails. T...

everlasting

(Encyclopedia)everlasting or immortelle ĭmˌôrtĕlˈ [key], names for numerous plants characterized by papery or chaffy flowers that retain their form and often their color when dried and are used for winter bouq...

mountain ash, in botany

(Encyclopedia)mountain ash, name for any species of the genus Sorbus of the family Rosaceae (rose family), hardy ornamental trees and shrubs native to the Northern Hemisphere, not related to the true ashes. They ar...

mimosa, in botany

(Encyclopedia)mimosa mĭmōˈsə [key], any tree, shrub, or herb of the genus Mimosa of the family Leguminosae (pulse family), chiefly tropical plants. They usually have feathery foliage and rounded clusters of fra...

amide

(Encyclopedia)amide ămˈīd [key], organic compound formed by reaction of an acid chloride, acid anhydride, or ester with an amine. Under strong acidic conditions an amide can be hydrolyzed to yield an amine and a...

indicators, acid-base

(Encyclopedia)indicators, acid-base, organic compounds that, in aqueous solution, exhibit color changes indicative of the acidity or basicity of the solution. Common indicators include p-nitrophenol, which is color...

chloride

(Encyclopedia)chloride klōrˈīd, klôrˈ– [key], chemical compound containing chlorine. Most chlorides are salts that are formed either by direct union of chlorine with a metal or by reaction of hydrochloric ac...

Brown, Herbert Charles

(Encyclopedia)Brown, Herbert Charles, 1912–2004, American chemist, b. London, Ph.D. Univ. of Chicago, 1938. A professor at Wayne State Univ. (1943–47) and Purdue Univ. (1947–78), he shared the 1979 Nobel Priz...

Hoffmann, Josef

(Encyclopedia)Hoffmann, Josef, 1870–1956, Austrian architect. A student of Otto Wagner, he was a leader of Austrian decoration in the first three decades of the 20th cent. His sophisticated compositions, based on...

grille

(Encyclopedia)CE5 Grille grille, in architecture, a system of bars, usually of decorative metalwork, forming an openwork barrier or enclosure. In its usual materials of wrought iron or bronze, it has been favor...