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单词 aliphatic
释义

WordReference Random House Unabridged Dictionary of American English © 2024
al•i•phat•ic  (al′ə fat′ik),USA pronunciation adj. [Chem.]
  1. Chemistrypertaining to nonaromatic hydrocarbon compounds in which the constituent carbon atoms can be straight-chain, branched chain, or cyclic, as in alicyclic compounds;
    saturated, as in the paraffins;
    or unsaturated, as in the olefins and alkynes.
  • Greek aleiphat- (stem of áleiphar oil, fat) + -ic
  • 1885–90

Collins Concise English Dictionary © HarperCollins Publishers::
aliphatic /ˌælɪˈfætɪk/ adj
  1. (of an organic compound) not aromatic, esp having an open chain structure, such as alkanes, alkenes, and alkynes
Etymology: 19th Century: from Greek aleiphat-, aleiphar oil
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