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carbon (noun)

См. также в других словарях:

  • carbon — noun ADJECTIVE ▪ pure ▪ Diamonds are crystals of pure carbon. ▪ organic ▪ radioactive ▪ activated CARBON + NOUN …   Collocations dictionary

  • carbon — ► NOUN ▪ a non metallic chemical element which has two main forms (diamond and graphite), occurs in impure form in charcoal, soot, and coal, and is present in all organic compounds. DERIVATIVES carbonaceous adjective. ORIGIN Latin carbo coal,… …   English terms dictionary

  • carbon arc — noun has carbon electrodes • Syn: ↑carbon arc lamp • Hypernyms: ↑arc lamp, ↑arc light • Hyponyms: ↑klieg light * * * noun 1. : an …   Useful english dictionary

  • carbon trading — noun The trading of carbon credits (qv above) • • • Main Entry: ↑carbon * * * carbon trading UK US noun [uncountable] a system that allows a company or country that reduces the amount of carbon dioxide it produces to below a particular level to… …   Useful english dictionary

  • carbon copy — ˌcarbon ˈcopy noun [countable] 1. a copy of a document made using carbon paper 2. be a carbon copy of something if something is a carbon copy of something else, it is very similar 3. cc COMPUTING a copy of an email message; ➔ Blind Carbon Copy …   Financial and business terms

  • carbon footprint — noun The extent to which a person, community or organization is responsible for the emission of carbon dioxide into the atmosphere through use of fossil fuels • • • Main Entry: ↑carbon * * * ˌcarbon ˈfootprint 8 [carbon footprint] noun a measure… …   Useful english dictionary

  • carbon dating — noun a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon 14; believed to be reliable up to 40,000 years • Syn: ↑radiocarbon dating, ↑carbon 14 dating • Hypernyms: ↑dating,… …   Useful english dictionary

  • carbon dioxide — noun a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis (Freq. 1) • Syn: ↑CO2, ↑carbonic acid gas • Derivationally related forms: ↑carbonate • …   Useful english dictionary

  • carbon 14 — noun a radioactive isotope of carbon • Syn: ↑radiocarbon • Hypernyms: ↑carbon, ↑C, ↑atomic number 6 * * * noun : a heavy radioactive isotope of carbon having the mass number 14 that is formed by the action of cosmic rays on nitrogen in the… …   Useful english dictionary

  • carbon microphone — noun : a microphone whose operation depends on the alteration of the electrical resistance of carbon contacts * * * carbon microphone noun A microphone in which variations in sound pressure produced in a diaphragm are detected in a current… …   Useful english dictionary

  • carbon paper — noun a thin paper coated on one side with a dark waxy substance (often containing carbon); used to transfer characters from the original to an under sheet of paper • Syn: ↑carbon • Hypernyms: ↑paper * * * noun [noncount] : paper with a dark… …   Useful english dictionary

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