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[pol-ee-een] /ˈpɒl iˌin/

noun, Chemistry.
a hydrocarbon containing two or more double bonds, often conjugated.
a chemical compound containing a chain of alternating single and double carbon-carbon bonds
An organic compound containing at least four carbon atoms and at least two double bonds. Numerous naturally occurring plant pigments, such as carotenes, are polyenes.


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  • Polyenoic acid

    polyenoic acid pol·y·e·no·ic acid (pŏl’ē-ē-nō’ĭk) n. Any of various fatty acids having more than one double bond in the carbon chain, as in linoleic acid.

  • Polyergic

    polyergic pol·y·er·gic (pŏl’ē-ûr’jĭk) adj. Capable of acting in several different ways.

  • Polyester

    [pol-ee-es-ter, pol-ee-es-ter] /ˈpɒl iˌɛs tər, ˌpɒl iˈɛs tər/ noun 1. Chemistry. a polymer in which the monomer units are linked together by the group –COO–, usually formed by polymerizing a polyhydric alcohol with a polybasic acid: used chiefly in the manufacture of resins, plastics, and textile fibers. 2. Also called poly. a fabric made from […]

  • Polyesthesia

    polyesthesia pol·y·es·the·sia (pŏl’ē-ĭs-thē’zhə) n. A disorder of sensation in which a single touch or other stimulus is felt as several.

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