open-chain open-chain adj. (Chemistry) not cyclic; having no rings of atoms within the molecular structure; having an open chain structure. Opposite of {cyclic}. [Narrower terms: {aliphatic ]

Syn: acyclic. [WordNet 1.5]

The Collaborative International Dictionary of English. 2000.

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  • Aliphatic — Al i*phat ic, a. [Gr. ?, ?, oil, fat.] (Org. Chem.) Of, pertaining to, or derived from, fat; fatty; applied to compounds having an open chain structure. The aliphatic compounds thus include not only the fatty acids and other derivatives of the… …   The Collaborative International Dictionary of English

  • aliphatic — aliphatic. См. алифатический. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • aliphatic — [al΄ə fat′ik] adj. [< Gr aleiphar (gen. aleiphatos), fat, oil + IC] 1. pertaining to a fat or oil 2. of or relating to a major group of organic compounds, structured in open chains, including alkanes (paraffins), alkenes (olefins), and alkynes …   English World dictionary

  • aliphatic —    One of the main groups of hydrocarbons characterized by the straight or branched chain arrangement of constituent atoms. Aliphatic hydrocarbons belong to one of three subgroups: (1) alkanes or paraf fins, all of which are saturated and… …   Forensic science glossary

  • aliphatic — adjective Etymology: International Scientific Vocabulary, from Greek aleiphat , aleiphar oil, from aleiphein to smear; perhaps akin to Greek lipos fat more at leave Date: 1889 of, relating to, or being an organic compound (as an alkane) having an …   New Collegiate Dictionary

  • aliphatic — adj. [Gr. aleiphos, fat] Refers to compounds having an open chain structure, and those cyclic compounds that resemble the open chain structure …   Dictionary of invertebrate zoology

  • aliphatic — Carbon compound in which the carbon chain is open (non cyclic) …   Dictionary of molecular biology

  • aliphatic — /al euh fat ik/, adj. Chem. pertaining to nonaromatic hydrocarbon compounds in which the constituent carbon atoms can be straight chain, branched chain, or cyclic, as in alicyclic compounds; saturated, as in the paraffins; or unsaturated, as in… …   Universalium

  • aliphatic — 1. adjective /ælɪˈfætɪk/ Of a class of organic compounds in which the carbon atoms are arranged in an open chain. 2. noun /ælɪˈfætɪk/ a) A compound of this type. b) A petroleum …   Wiktionary

  • aliphatic — Denoting the acyclic carbon compounds, most of which belong to the fatty acid series. [G. aleiphar (aleiphat ), fat, oil] a. acids the acids of nonaromatic hydrocarbons ( e.g., acetic, propionic, butyric acid s); the so called fatty acid s of the …   Medical dictionary