polyploidy

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polyploidy

 [pol´e-ploi″de]
the state of having more than two sets of homologous chromosomes.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pol·y·ploi·dy

(pol'ē-ploy'dē),
The state of a cell nucleus containing three or more haploid sets. Cells containing three, four, five, or six multiples are referred to, respectively, as triploid, tetraploid, pentaploid, or hexaploid.
[poly- + G. ploidēs, in form]
Farlex Partner Medical Dictionary © Farlex 2012

pol·y·ploi·dy

(pol'ē-ploy'dē)
The state of a cell nucleus containing three or more haploid sets. Cells containing three, four, five, or six multiples are referred to, respectively, as triploid, tetraploid, pentaploid, and hexaploid.
[poly- + G. ploidēs, in form]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
(1986) has also done crossing between Fragaria x ananassa (2n = 8x = 56) and Fragaria vesca (2n = 2x = 14) which produced decaploids after chromosome doubling (Fragaria vescana 2n = 10x = 70), and Yanagi et al.
We were not able to count chromosome numbers of the decaploid B.
The ploidy level within the genus varies from diploid to decaploid (Armstrong, 1991).