Definitions of heterocyclic
  1. adjective
    containing a closed ring of atoms of which at least one is not a carbon atom
    of a compound having atoms arranged in a ring structure
  2. noun
    a compound containing a heterocyclic ring
    synonyms: heterocycle, heterocyclic compound
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    chelate, chelate compound
    a heterocyclic compound having a metal ion attached by coordinate bonds to at least two nonmetal ions
    type of:
    chemical compound, compound
    (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
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