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单词 heterocyclic
释义 heterocyclic
 —heterocycle /het"euhr euh suy'keuhl/,  n.  
 /het'euhr euh suy"klik, -sik"lik/, adj. Chem.
  1. of or pertaining to the branch of chemistry dealing with cyclic compounds in which at least one of the ring members is not a carbon atom (contrasted with homocyclic).
  2. noting such compounds, as ethylene oxide, C2H4O.
 [1895-1900; HETERO- + CYCLIC]
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