- heterocyclic ring
- a chemical ring that includes atoms of different elements.
(A), Benzene, having a homocyclic ring structure; (B), pyrimidine, having a heterocyclic ring structure.
Medical dictionary. 2011.
heterocyclic ring
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heterocyclic ring — noun a ring of atoms of more than one kind; especially a ring of carbon atoms containing at least one atom that is not carbon • Syn: ↑heterocycle • Derivationally related forms: ↑heterocyclic (for: ↑heterocycle) • Hypernyms: ↑ … Useful english dictionary
heterocyclic compound — Any of a class of organic compounds whose molecules contain one or more rings of atoms with at least one atom (the heteroatom) being an element other than carbon, most frequently oxygen, nitrogen, or sulfur. As in regular cyclic hydrocarbons,… … Universalium
heterocyclic compound — noun a compound containing a heterocyclic ring • Syn: ↑heterocyclic, ↑heterocycle • Derivationally related forms: ↑heterocyclic (for: ↑heterocycle) • Hypernyms: ↑ … Useful english dictionary
Heterocyclic compound — Heterocyclic compounds are organic compounds containing at least one atom of carbon, and at least one element other than carbon, such as sulfur, oxygen or nitrogen within a ring structure .cite book author = Eicher, T.; Hauptmann, S. title = The… … Wikipedia
heterocyclic — [het΄ər ōsīk′lik] adj. [ HETERO + CYCLIC] of or relating to certain cyclic compounds with a ring composed of carbon atoms and those of any other element or elements … English World dictionary
heterocyclic — het·ero·cy·clic .het ə rō sī klik, sik lik adj relating to, characterized by, or being a ring composed of atoms of more than one kind <heterocyclic chemical compounds> heterocyclic n HETEROCYCLE * * * het·ero·cyc·lic (het″ər o… … Medical dictionary
heterocyclic — Cyclic Cyc lic (s?k l?k or s? kl?k), Cyclical Cyc lic*al (s?k l? kal), a. [Cf. F. cycluque, Gr. kykliko s, fr. ky klos See {Cycle}.] 1. Of or pertaining to a cycle or circle; moving in cycles; as, cyclical time. Coleridge. [1913 Webster] 2.… … The Collaborative International Dictionary of English
heterocyclic — adjective Etymology: International Scientific Vocabulary Date: 1899 relating to, characterized by, or being a ring composed of atoms of more than one kind • heterocycle noun • heterocyclic noun … New Collegiate Dictionary
heterocyclic — heterocycle /het euhr euh suy keuhl/, n. /het euhr euh suy klik, sik lik/, adj. Chem. 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 (contrasted with… … Universalium
heterocyclic compound — a chemical substance that contains a ring shaped nucleus composed of dissimilar elements … Medical dictionary
