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natural bitumen

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  • natural bitumen, GB — gamtinis bitumas statusas T sritis chemija apibrėžtis Bitumas, randamas gamtiniuose kloduose, dažnai susimaišęs su smulkia mineraline medžiaga. atitikmenys: angl. native asphalt, US; natural asphalt, US; natural bitumen, GB rus. природный… …   Chemijos terminų aiškinamasis žodynas

  • Bitumen — is a mixture of organic liquids that are highly viscous, black, sticky, entirely soluble in carbon disulfide, and composed primarily of highly condensed polycyclic aromatic hydrocarbons. Naturally occurring or crude bitumen is a sticky, tar like… …   Wikipedia

  • natural asphalt, US — gamtinis bitumas statusas T sritis chemija apibrėžtis Bitumas, randamas gamtiniuose kloduose, dažnai susimaišęs su smulkia mineraline medžiaga. atitikmenys: angl. native asphalt, US; natural asphalt, US; natural bitumen, GB rus. природный… …   Chemijos terminų aiškinamasis žodynas

  • BITUMEN — (Heb. חֵמָר, hemar and כֹּפֶר, kofer; LXX), a black, flammable substance which becomes viscous and absorbent on heating. It occurs in almost every part of the world, including Mesopotamia, Iran, and Israel, and is found in various natural forms:… …   Encyclopedia of Judaism

  • Bitumen — Bi*tu men, n. [L. bitumen: cf. F. bitume. Cf. {B[ e]ton}.] 1. Mineral pitch; a black, tarry substance, burning with a bright flame; Jew s pitch. It occurs as an abundant natural product in many places, as on the shores of the Dead and Caspian… …   The Collaborative International Dictionary of English

  • bitumen — [bi to͞o′mən, bīto͞o′mən; bityo͞o′mən, bītyo͞o′mən] n. [L < Celt (or ? Oscan Umbrian) < IE * gwet , resin > Sans jatu, gum, Bret bezuen, birch] 1. Obs. asphalt found in a natural state 2. any of various black, combustible, solid to… …   English World dictionary

  • bitumen — bituminoid /buy tooh meuh noyd , tyooh , bi /, adj. /buy tooh meuhn, tyooh , bi , bich oo /, n. 1. any of various natural substances, as asphalt, maltha, or gilsonite, consisting mainly of hydrocarbons. 2. (formerly) an asphalt of Asia Minor used …   Universalium

  • bitumen — noun /ˈbɪtjumɛn/ a) Mineral pitch; a black, tarry substance, burning with a bright flame; Jew’s pitch. It occurs as an abundant natural product in many places, as on the shores of the Dead and Caspian Seas. It is used in cements, in the… …   Wiktionary

  • bitumen — /ˈbɪtʃəmən / (say bichuhmuhn) noun 1. any of various natural substances, as asphalt, maltha, etc., consisting mainly of hydrocarbons, and used in surfacing roads, roofing, etc. 2. a brown tar or asphalt like substance used in painting. –phrase 3 …  

  • bitumen — noun Etymology: Middle English bithumen mineral pitch, from Latin bitumin , bitumen Date: 15th century 1. an asphalt of Asia Minor used in ancient times as a cement and mortar 2. any of various mixtures of hydrocarbons (as tar) often together… …   New Collegiate Dictionary

  • bitumen — bi•tu•men [[t]baɪˈtu mən, ˈtyu , bɪ , ˈbɪtʃ ʊ [/t]] n. 1) chem. any of various natural substances, as asphalt, consisting mainly of hydrocarbons 2) chem. bui (formerly) an asphalt of Asia Minor used as cement and mortar • Etymology: 1425–75; late …   From formal English to slang

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