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Polyploidy

Synonym(s)

An increase in the number of haploid sets (23) of chromosomes in a cell. Triploidy refers to three whole sets of chromosomes in a single cell (in humans, a total of 69 chromosomes per cell); tetraploidy refers to four whole sets of chromosomes in a single cell (in humans, a total of 92 chromosomes per cell).: Definition from: GeneReviews from the University of Washington and the National Center for Biotechnology Information
Having or being a chromosome number that is a multiple greater than two of the monoploid number.: Definition from: Merriam-Webster's Medical Dictionary by Merriam-Webster Inc.