Polyploid
Three or more full sets of chromosomes. A polyploid brain tumor cell might for example have 69 or 92 chromosomes.
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Characterized by or pertaining to polyploidy.

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poly·ploid 'päl-i-.plȯid adj having or being a chromosome number that is a multiple greater than two of the monoploid number
polyploid n a polyploid individual

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adj.
describing cells, tissues, or individuals in which there are three or more complete sets of chromosomes. Compare diploid, haploid.
polyploidy n.

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poly·ploid (polґe-ploid) [poly- + haploid] 1. having more than two full sets of homologous chromosomes. There may be three (triploid), four (tetraploid), five (pentaploid), six (hexaploid), seven (heptaploid), eight (octaploid), etc. 2. an individual or cell having more than two full sets of homologous chromosomes. Polyploid organisms, especially plants, are larger than normal and have larger cells. Affected animals are often abnormal in appearance and usually infertile. Cf. aneuploid.

Medical dictionary. 2011.

Look at other dictionaries:

  • polyploid — [päl′i ploid΄] adj. [ POLY + PLOID] having the number of chromosomes in the somatic cells three or more times the haploid number n. a polyploid cell or organism polyploidy n …   English World dictionary

  • Polyploid — This image shows haploid (single), diploid (double), triploid (triple), and tetraploid (quadruple) sets of chromosomes. Triploid and tetraploid chromosomes are examples of polyploidy. Polyploid is a term used to describe cells and organisms… …   Wikipedia

  • Polyploid — poliploidas statusas T sritis ekologija ir aplinkotyra apibrėžtis Individas, kurio ląstelių branduoliuose yra keleriopas (daugiau kaip dviejų) chromosomų rinkinys. atitikmenys: angl. polyploid vok. Polyploid rus. полиплоид; полиплоиды …   Ekologijos terminų aiškinamasis žodynas

  • polyploid — poliploidas statusas T sritis ekologija ir aplinkotyra apibrėžtis Individas, kurio ląstelių branduoliuose yra keleriopas (daugiau kaip dviejų) chromosomų rinkinys. atitikmenys: angl. polyploid vok. Polyploid rus. полиплоид; полиплоиды …   Ekologijos terminų aiškinamasis žodynas

  • polyploid — adjective Etymology: International Scientific Vocabulary Date: 1920 having or being a chromosome number that is a multiple greater than two of the monoploid number • polyploid noun • polyploidy noun …   New Collegiate Dictionary

  • Polyploid — haploide, diploide und hexaploide Zellkerne Als Polyploidie bezeichnet man in der Biologie das bei manchen Arten zu beobachtende Phänomen, mehr als zwei Sätze von Chromosomen in den Zellen zu besitzen. Ein einfacher (haploider) Chromosomensatz… …   Deutsch Wikipedia

  • polyploid — polyploidic, adj. polyploidy, n. /pol ee ployd /, Biol. adj. 1. having a chromosome number that is more than double the basic or haploid number. n. 2. a polyploid cell or organism. [1915 20; POLY + PLOID] * * * …   Universalium

  • polyploid — pol•y•ploid [[t]ˈpɒl iˌplɔɪd[/t]] adj. 1) gen having a chromosome number that is more than double the basic or haploid number 2) gen a polyploid cell or organism • Etymology: 1915–20 pol y•ploi′dic, adj. pol′y•ploi dy, n …   From formal English to slang

  • polyploid — /ˈpɒliplɔɪd/ (say poleeployd) adjective 1. having or being a chromosome number that is a multiple greater than two of the monoploid number. –noun 2. a cell or organism which is polyploid. –polyploidy, noun …   Australian English dictionary

  • polyploid — poliploidas statusas T sritis augalininkystė apibrėžtis Organizmas, turintis ląstelėse daugiau chromosomų rinkinių negu diploidas. atitikmenys: angl. polyploid rus. полиплоид …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

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