polyploid

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Related to polyploidies: allopolyploid

polyploid

 [pol´e-ploid]
1. characterized by polyploidy.
2. an individual or cell characterized by polyploidy.

pol·yp·loid

(pol'ē-ployd),
Characterized by or pertaining to polyploidy.

polyploid

(pŏl′ē-ploid′)
adj.
Having one or more extra sets of chromosomes: a polyploid species; a polyploid cell.
n.
An organism with more than two sets of chromosomes.

pol′y·ploi′dy n.

polyploid

[pol′əploid]
Etymology: Gk, polys + plous, times
1 n, an individual, organism, strain, or cell that has more than twice the haploid number of chromosomes characteristic of the species. The multiple of the haploid number is denoted by the appropriate prefix, as in triploid, tetraploid, pentaploid, hexaploid, heptaploid, octaploid, and so on. Polyploidy is rare in animals, producing individuals that are abnormal in appearance and usually infertile. It is common in plants, however; such plants generally are larger, have larger cells, and are hardier than diploid plants.
2 adj, also called polyploidic. pertaining to such an individual, organism, strain, or cell. Compare aneuploid. polyploidy, n.

polyploid

adjective Referring to polyploidy, see there.

pol·y·ploid

(pol'i-ployd)
Characterized by or pertaining to polyploidy.

polyploid

Having more than twice the normal HAPLOID number of chromosomes. See also DIPLOID.

polyploid

  1. (of cells or organisms) having three or more complete sets of chromosomes.
  2. an individual or cell of this type. see TRIPLOID, TETRAPLOID.

polyploid

1. characterized by polyploidy.
2. an individual or cell characterized by polyploidy.
References in periodicals archive ?
Furthermore, there was not a possibility of confusing true polyploidies with the metaphases resulting after the hypotonic treatment.
The occurrence of polyploidies is associated with chromosomal instability and therefore with a higher risk of malignant transformation.
Because of the association between chromosome abnormalities and carcinogenesis, a higher probability to develop polyploidies in ovarian surface epithelium in the elderly should have an impact on the clinical field, in specific situations such as: