(Encyclopedia) colloidcolloidkŏlˈoid [key] [Gr.,=gluelike], a mixture in which one substance is divided into minute particles (called colloidal particles) and dispersed throughout a second substance…
(Encyclopedia) makomakomäˈkō [key], heavy-bodied, fast-swimming shark, genus Isurus, highly prized as a game fish. Also known as the sharp-nosed mackerel shark, it is a member of the mackerel shark…
(Encyclopedia) hockey, field, outdoor stick and ball game. Field hockey, like many sports, is of obscure origins, but traces in one form or another to the ancient Egyptians and Persians, making it…
(Encyclopedia) barrow, in archaeology, a burial mound. Earth and stone or timber are the usual construction materials; in parts of SE Asia stone and brick have entirely replaced earth. A barrow built…
(Encyclopedia) bog, very old lake without inlet or outlet that becomes acid and is gradually overgrown with a characteristic vegetation (see swamp). Peat moss, or sphagnum, grows around the edge of…
(Encyclopedia) yuccayuccayŭkˈə [key], any plant of the genus Yucca, stiff-leaved stemless or treelike succulents of the family Liliaceae (lily family), native chiefly to the tablelands of Mexico and…
(Encyclopedia) stratigraphy, branch of geology specifically concerned with the arrangement of layered rocks (see stratification). Stratigraphy is based on the law of superposition, which states that…
(Encyclopedia) extraditionextraditionĕkstrədĭshˈən [key], delivery of a person, suspected or convicted of a crime, by the state where he has taken refuge to the state that asserts jurisdiction over…
(Encyclopedia) facsimilefacsimilefăksĭmˈəlē [key] or fax, in communications, system for transmitting pictures or other graphic matter by wire or radio. Facsimile is used to transmit such materials as…
(Encyclopedia) life, although there is no universal agreement as to a definition of life, its biological manifestations are generally considered to be organization, metabolism, growth, irritability,…
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