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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.


(Chemistry) a heterocyclic compound
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.heterocycle - 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
2.heterocycle - a ring of atoms of more than one kind; especially a ring of carbon atoms containing at least one atom that is not carbon
closed chain, ring - (chemistry) a chain of atoms in a molecule that forms a closed loop
References in periodicals archive ?
The bioactivity of Imidazole derivatives are attributed by the parent basic heterocycle ring.
Types of Pigments: Blues (Phthalo); Greens (Phthalo); Reds (Quinacridone, Napthol); Speciality Pigments (Benzimidazolone, Azo Condensation); Yellows and Oranges (Azo and Heterocycle, Diarylides, Hansas, Specialties)
structure containing a substituted heterocycle which is connected to a
1] is a bond or a divalent organic group, and a is a sulfur-containing heterocycle selected from the group consisting of thiirane, thietane, thiolane, thiazoline, dihydrothiophene, thiadiazine, thioxanthene, thianthrene, phenoxathiin, dihydroisothiazole, and thienofuran group or substituted form thereof.
Purpald specifically forms a bicyclic heterocycle with aldehydes and changes from colorless to purple on oxidation.
One humble arylmethylidene heterocycle had its moment in the limelight this fall as it became the 50 millionth substance registered by the Chemical Abstracts Service (CAS) in Columbus, Ohio on September 7.
Nicknamed arylmethylidene heterocycle, the formula aspires to be a neuropathic pain reducer someday.
Instead, an oxygen- and nitrogen-containing heterocycle is used as an accelerator.
TGA results showed that 5% weight loss temperatures were greater than 337[degrees]C for all the samples, and the residue at 700[degrees]C is in general dependent by the increase of phosphorus-containing heterocycle in the macromolecular system.
Novel photoreactions of an insecticidal nitromethylene heterocycle.
The light-induced homolytical nitrogen-oxygen bond cleavage yields a radical cation of the aromatic heterocycle and an alkoxy radical.
The recently registered substance is a novel arylmethylidene heterocycle with analgesic properties.