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perennial
(Encyclopedia)perennial, any plant that under natural conditions lives for several to many growing seasons, as contrasted to an annual or a biennial. Botanically, the term perennial applies to both woody and herbac...dune
(Encyclopedia)dune, mound or ridge of wind-blown sand formed in arid regions and along coasts. Dunes are common in most of the great deserts of the world. Often a dune begins to form because material is deposited b...Boston Symphony Orchestra
(Encyclopedia)Boston Symphony Orchestra, founded in 1881 by Henry Lee Higginson, who was its director and financial backer until 1918. The orchestra performed at the Old Boston Music Hall for nearly 20 years until ...New Democratic party
(Encyclopedia)New Democratic party (NDP), Canadian political party, founded in 1961 when the Cooperative Commonwealth Federation (CCF) reorganized itself and entered into close ties with Canadian labor unions, espe...Mandan, indigenous people of North America
(Encyclopedia)Mandan mănˈdăn, –dən [key], indigenous people of North America whose language belongs to the Siouan branch of the Hokan-Siouan linguistic stock (see Native American languages). The Mandan were a...Decatur, Stephen
(Encyclopedia)Decatur, Stephen dēkāˈtər [key], 1779–1820, American naval officer, b. Sinepuxent, near Berlin, Md.; son of a naval officer, Stephen Decatur. After joining the U.S. navy in 1798, he rose to fame...intelligence
(Encyclopedia)intelligence, in psychology, the general mental ability involved in calculating, reasoning, perceiving relationships and analogies, learning quickly, storing and retrieving information, using language...rock carvings and paintings
(Encyclopedia)rock carvings and paintings, designs inscribed on rock surfaces and huge stone monuments in many parts of the world by prehistoric or preindustrial peoples. They have been found on every continent and...San
(Encyclopedia)San săn [key], people of SW Africa (mainly Botswana, Namibia, Angola, and South Africa), consisting of several groups and numbering about 100,000 in all. They are generally short in stature; their sk...diving, springboard and platform
(Encyclopedia)diving, springboard and platform, sport of entering the water from a raised position, often while executing tumbles, twists, and other acrobatic maneuvers. In most dives the upper part of the body ent...Browse by Subject
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