One or a few chromosomes above or below the normal chromosome number. For example, three number 21 chromosomes or trisomy 21 (characteristic of Down syndrome) is a form of aneuploidy.
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State of being aneuploid.
- partial a. a type of mosaicism in which some cells have a normal number of chromosomes and some have an abnormal number.

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the condition in which the chromosome number of a cell is not an exact multiple of the normal basic (haploid) number. See monosomy, trisomy; compare euploidy.
aneuploid adj. n.

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an·eu·ploi·dy (anґu-ploi″de) [an-1 + euploidy] any deviation from an exact multiple of the haploid number of chromosomes, whether fewer (hypoploidy, as in Turner syndrome) or more (hyperploidy, as in Down syndrome).

Medical dictionary. 2011.

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Look at other dictionaries:

  • Aneuploidy — Classification and external resources ICD 10 Q90 Q98 ICD 9 …   Wikipedia

  • aneuploidy — aneuploidy. См. анеуплоидия. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • aneuploidy — (n.) abnormal number of chromosomes, 1934, from aneuploid (1931), Modern Latin, coined 1922 by G. Täckholm from AN (Cf. an ) (1) not + euploid, from Gk. eu well, good (see EU (Cf. eu )) + ploid (comb. form of ploos fold + OID (Cf …   Etymology dictionary

  • aneuploidy — nesubalansuotoji poliploidija statusas T sritis augalininkystė apibrėžtis Nekartotiniai chromosomų rinkinių arba pavienių chromosomų pakitimai pagrindinio (haploidinio) jų skaičiaus atžvilgiu. atitikmenys: angl. aneuploidy; heteroploidy rus.… …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • aneuploidy — noun see aneuploid …   New Collegiate Dictionary

  • aneuploidy — an·eu·ploi·dy (ănʹyə ploi dē) n. The state or condition of being aneuploid. * * * …   Universalium

  • aneuploidy — noun The condition of being aneuploid; the state of possessing chromosome number than is not an exact multiple of the haploid number. See Also: aneuploid, aneuploidic …   Wiktionary

  • aneuploidy — an·eu·ploidy …   English syllables

  • aneuploidy — n. the condition in which the chromosome number of a cell is not an exact multiple of the normal basic (haploid) number. See: monosomy, trisomy Compare: euploidy Derivatives: aneuploid adj., n …   The new mediacal dictionary

  • aneuploidy — /ˈænjuplɔɪdi/ (say anyoohploydee) noun abnormality in the number of chromosomes …  

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