2 Noun 0 Verb 0 Adj. 0 Adv.
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ENheterocycleNoun
EN
A compound containing a heterocyclic ring
heterocyclic compoundheterocyclic
bn:00043918n Concept
EN
A ring of atoms of more than one kind; especially a ring of carbon atoms containing at least one atom that is not carbon
heterocyclic ring
bn:00043919n Concept