Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Having one or more extra sets of chromosomes.
  • noun An organism with more than two sets of chromosomes.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective genetics having more than the usual number of complete sets of chromosomes in a single cell
  • noun biology a cell or organism that has more than the usual number of complete sets of chromosomes

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun (genetics) an organism or cell having more than twice the haploid number of chromosomes
  • adjective of a cell or organism having more than twice the haploid number of chromosomes

Etymologies

Sorry, no etymologies found.

Examples

  • Wendel 2008 Partitioned expression of duplicated genes during development and evolution of a single cell in a polyploid plant.

    Flagellum evolution -- how's your German? - The Panda's Thumb

  • Incipient polyploid speciation in the maidenhair fern (Adiantum pedatum, adiantaceae)?

    On Thursday, the Legg report will be published along with...

  • Incipient polyploid speciation in the maidenhair fern (Adiantum pedatum, adiantaceae)?

    On Thursday, the Legg report will be published along with...

  • Feeding of freshly irradiated wheat resulted in significantly increased incidence of polyploid cells in bone marrow, aneuploid cells in testis, reduction in number of spermatogonia of types A, B and resting primary spermatocytes as well as a higher mutagenic index.

    Archive 2008-08-01

  • If the diet was stored initially for 6 weeks following irradiation before being fed to the animals no increase in the number of polyploid cells was noted.

    NUKED FOOD

  • If the diet was stored initially for 6 weeks following irradiation before being fed to the animals no increase in the number of polyploid cells was noted.

    Archive 2008-08-01

  • Feeding of freshly irradiated wheat resulted in significantly increased incidence of polyploid cells in bone marrow, aneuploid cells in testis, reduction in number of spermatogonia of types A, B and resting primary spermatocytes as well as a higher mutagenic index.

    NUKED FOOD

  • One possibility is that the the macronucleus is not well-suited to reproduction, given that it carries a huge number of chromosomes and is polyploid to boot.

    Another Protozoan and Front-Loading

  • When the feeding of the irradiated diet was stopped, the proportion of polyploid cells returned to the control level within a maximum of 6 weeks.

    NUKED FOOD

  • When the feeding of the irradiated diet was stopped, the proportion of polyploid cells returned to the control level within a maximum of 6 weeks.

    Archive 2008-08-01

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