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单词 ethylene
释义

WordReference Random House Unabridged Dictionary of American English © 2024
eth•yl•ene  (eth′ə lēn′),USA pronunciation [Chem.]
adj. 
  1. Chemistrycontaining the ethylene group.

n. 
  1. ChemistryAlso called ethene, olefiant gas. a colorless, flammable gas, C2H4, having a sweet, unpleasant odor and taste, the first member of the ethylene series, usually obtained from petroleum and natural gas: used as an agent to improve the color of citrus fruits, in the synthesis of polyethylene, ethylene dibromide, ethylene oxide, and other organic compounds, and in medicine chiefly as an inhalation anesthetic.
  • 1850–55; ethyl + -ene
eth•yl•e•nic  (eth′ə lē′nik, -len′ik),USA pronunciation adj. 
Collins Concise English Dictionary © HarperCollins Publishers::
ethylene /ˈɛθɪˌliːn/ n
  1. a colourless flammable gaseous alkene with a sweet odour, obtained from petroleum and natural gas and used in the manufacture of polythene and many other chemicals. Formula: CH2:CH2
    Also called: ethene

ethylenic /ˌɛθɪˈliːnɪk/ adj
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