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heterocyclic compounds
chem.	cycles hétérogènes; hétérocycles m; composés hétérocycliques
oil	composé hétérocycliques, y compris les acides nucléiques: caprolactame
heterocyclic compound
chem.	composé hétérocyclique
environ.	hétérocycle m
heterocyclic compound Compound in which the ring structure is a combination of more than one kind of atom
environ.	hétérocycle m