homologous series


homologous series
   A series of similar organic compounds, differing only in that the next higher member of the series has an additional CH2 group (one carbon atom and two hydrogen atoms) in its molecular structure. Fuel oils are characterized by the presence of identifiable homologous series of normal alkanes.

Forensic science glossary. . 2012.

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  • Homologous series — In chemistry, a homologous series is a series of organic compounds with a similar general formula, possessing similar chemical properties due to the presence of the same functional group, and shows a gradation in physical properties as a result… …   Wikipedia

  • homologous series — ▪ chemistry       any of numerous groups of chemical compounds in each of which the difference between successive members is a simple structural unit. Such series are most common among organic compounds, the structural difference being a… …   Universalium

  • homologous series — homologinė eilė statusas T sritis chemija apibrėžtis Organinių junginių eilė, kurios gretimi nariai skiriasi –CH₂– grupe. atitikmenys: angl. homologous series rus. гомологический ряд …   Chemijos terminų aiškinamasis žodynas

  • homologous series — noun any series of aliphatic organic compounds whose members differ only in the addition of a CH group; for example, the carboxylic acids, CH(CH)COOH where n is any non negative number …   Wiktionary

  • homologous series — a series of organic compounds each member of which differs from the one preceding it by having one more CH2 group …   Medical dictionary

  • homologous — [hō mäl′ə gəs] adj. [Gr homologos, agreeing < homos, SAME + legein, say: see LOGIC] 1. corresponding in structure, position, character, etc.: opposed to HETEROLOGOUS 2. Biol. corresponding in basic type of structure and deriving from a common… …   English World dictionary

  • Homologous — Ho*mol o*gous, a. [Gr. ? assenting, agreeing; ? the same + ? speech, discourse, proportion, ? to say, speak.] Having the same relative position, proportion, value, or structure. Especially: (a) (Geom.) Corresponding in relative position and… …   The Collaborative International Dictionary of English

  • Homologous stimulus — Homologous Ho*mol o*gous, a. [Gr. ? assenting, agreeing; ? the same + ? speech, discourse, proportion, ? to say, speak.] Having the same relative position, proportion, value, or structure. Especially: (a) (Geom.) Corresponding in relative… …   The Collaborative International Dictionary of English

  • Homologous recombination — Figure 1. During meiosis, homologous recombination can produce new combinations of genes as shown here between similar but not identical copies of human chromosome 1. Homologous recombination is a type of genetic recombination in which nucleotide …   Wikipedia

  • Homologous — The relationship between two chromosomes that are paired and so are homologs of each other. * * * Corresponding or alike in certain critical attributes. 1. In biology or zoology, denoting organs or parts corresponding in evolutionary origin and… …   Medical dictionary


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