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Mazatlán
(Encyclopedia)Mazatlán mäsätlänˈ [key], city (1990 pop. 262,705), Sinaloa state, W Mexico, on the Pacific coast. One of the largest commercial and industrial centers of W Mexico, Mazatlán is one of Mexico's m...blackhead
(Encyclopedia)blackhead, yellowish or blackish plug of material accumulated in the duct of a sebaceous gland. The material consists of keratin (horny cells of the epidermis) and modified sebum (oily secretions of t...Ensenada
(Encyclopedia)Ensenada entsənädə [key], city, Baja California state, NW Mexico. Developed in the 19th ce...Joliet
(Encyclopedia)Joliet jōˈlēĕtˌ [key], city (1990 pop. 76,836), seat of Will co., NE Ill., on the Des Plaines River; inc. 1857. It is a river port and an industrial shipping center, with limestone quarries and c...Johanan ben Zakkai
(Encyclopedia)Johanan ben Zakkai jōhănˈən bĕn zăkˈāī [key], leader of the Pharisees of Jerusalem before the destruction of the Temple in a.d. 70, afterward founder of the Jewish academy at Jamnia. He empha...chalcopyrite
(Encyclopedia)chalcopyrite pīrīˈtēz, pə– [key], brass-yellow mineral, sometimes with an iridescent tarnish. It is a sulfide of copper and iron, CuFeS2 . It crystallizes in the tetragonal system but is usua...Ekelund, Vilhelm
(Encyclopedia)Ekelund, Vilhelm vĭlˈəlm āˈkəlŭndˌ [key], 1880–1949, Swedish essayist and poet. Ekelund's writings were influenced by the works of Nietzsche, Hölderlin, and Swedenborg. After publication of...Hubble Space Telescope
(Encyclopedia)Hubble Space Telescope (HST), the first large optical orbiting observatory. Built from 1978 to 1990 at a cost of $1.5 billion, the HST (named for astronomer E. P. Hubble) was expected to provide the c...boycott
(Encyclopedia)boycott, concerted economic or social ostracism of an individual, group, or nation to express disapproval or coerce change. The practice was named (1880) after Capt. Charles Cunningham Boycott, an Eng...Nippur
(Encyclopedia)Nippur nĭpo͝orˈ [key], ancient city of Babylonia, a N Sumerian settlement on the Euphrates. It was the seat of the important cult of the god Enlil, or Bel. Excavations at Nippur have yielded the re...Browse by Subject
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