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 (hĕt′ə-rō-sī′klĭk, -sĭk′lĭk)
Containing more than one kind of atom joined in a ring.

het′er·o·cy′cle (-sī′kəl) n.


(ˌhɛtərəʊˈsaɪklɪk; -ˈsɪk-)
(Chemistry) (of an organic compound) containing a closed ring of atoms, at least one of which is not a carbon atom. Compare homocyclic


(ˌhɛt ər əˈsaɪ klɪk, -ˈsɪk lɪk)

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.
2. noting such compounds.
het′er•o•cy`cle (-ˌsaɪ kəl) n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.heterocyclic - a compound containing a heterocyclic ring
chelate, chelate compound - a heterocyclic compound having a metal ion attached by coordinate bonds to at least two nonmetal ions
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
Adj.1.heterocyclic - containing a closed ring of atoms of which at least one is not a carbon atom
cyclic - of a compound having atoms arranged in a ring structure
References in periodicals archive ?
This edition has been updated and expanded to include chapters on organometallic heterocyclic chemistry, heterocyclics in biochemistry and natural products, especially biochemical processes, and in medicine; the use of bioprocesses in heterocyclic transformations, green chemistry and ionic liquids, and applications of heterocyclic compounds in everyday life; and new sections on heterocyclic fluorine compounds, isotopically labeled heterocycles, and solid-phase chemistry, microwave heating, and flow reactors.