[pol-ee-een] /ˈpɒl iˌin/
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.
- 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 pol·y·er·gic (pŏl’ē-ûr’jĭk) adj. Capable of acting in several different ways.
[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 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.