hyperploid

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hy·per·ploid

 (hī′pər-ploid′)
adj.
Having a chromosome number greater than but not an exact multiple of the normal euploid number.

hy′per·ploid′ n.
hy′per·ploi′dy n.

hyperploid

(ˈhaɪpəˌplɔɪd)
adj
(Biology) biology having or relating to a chromosome number that exceeds an exact multiple of the haploid number
ˈhyperˌploidy n

hy•per•ploid

(ˈhaɪ pərˌplɔɪd)

adj.
having a chromosome number that is greater than but not a multiple of the diploid number.
[1925–30]
hy′per•ploid′y, n.
References in periodicals archive ?
Trisomy 21 was most common cytogenetic abnormality presented in 28% of all complex karyotypes followed by hyperploidy that was 15% (Figure 1).
Genetic effects of petroleum fuels II: Analysis of chromosome loss and hyperploidy in peripheral lymphocytes of gasoline station attendants.
In figure 3, an interesting abnormal karyotype that illustrate s-Y in one clone and hyperploidy in another clone is shown.