[pol-ee-em-bree-uh-nee, -oh-nee, -em-brahy-uh-nee] /ˌpɒl iˈɛm bri ə ni, -ˌoʊ ni, -ɛmˈbraɪ ə ni/
the production of more than one embryo from one egg.
the production of more than one embryo from a single fertilized egg cell: occurs in certain plants and parasitic hymenopterous insects
polyembryony pol·y·em·bry·o·ny (pŏl’ē-ěm’brē-ə-nē, -ěm-brī’-)
Development of more than one embryo from a single egg or ovule.
Development from a single fertilized egg cell or, in plants, from a single ovule. In human beings, identical twins are the result of polyembryony. In gymnosperm plants, polyembryony involves the fertilization of more than one egg, though usually only one embryo survives in the ovule.
- Polyendocrine deficiency syndrome
polyendocrine deficiency syndrome pol·y·en·do·crine deficiency syndrome (pŏl’ē-ěn’də-krĭn, -krēn’, -krīn’) n. Pathological dysfunction of several endocrine glands. Also called polyglandular deficiency syndrome.
[pol-ee-een] /ˈpɒl iˌin/ noun, Chemistry. 1. a hydrocarbon containing two or more double bonds, often conjugated. /ˈpɒlɪˌiːn/ noun 1. a chemical compound containing a chain of alternating single and double carbon-carbon bonds polyene (pŏl’ē-ēn’) An organic compound containing at least four carbon atoms and at least two double bonds. Numerous naturally occurring plant pigments, such […]
- 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 […]