Meaning of ploidy: The number of sets of chromosomes in a cell or an organism.

Definition of ploidy

The number of sets of chromosomes in a cell or an organism. For example, haploid means one set and diploid means two sets.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.