| 单词 | heterocycle |
| 释义 | > as lemmasˈheterocycle ˈheterocycle n. a heterocyclic ring or compound. ΘΚΠ the world > matter > chemistry > organic chemistry > [noun] > organic structure > cyclic or ring compounds > heterocyclic heterocycle1909 heterocyclic1956 1909 Webster's New Internat. Dict. Eng. Lang. Heterocycle, a heterocyclic compound. 1931 Jrnl. Amer. Chem. Soc. 53 806 Ethylene oxide, the simplest oxygen heterocycle. 1957 E. H. Rodd Chem. Carbon Compounds IV a Introd. 1 Compounds containing these heterogeneous rings (heterocycles) are classed as heterocyclic. < as lemmas |
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