1. having an abnormal number of chromosomes, not a multiple of the haploid number
Usage: genetics; biology

1. an organism or cell that has an abnormal number of chromosomes
Usage: genetics; biology

Examples

• Down syndrome results from an aneuploid condition with three copies of chromosome 21.
• The aneuploid cells showed irregular growth patterns in the laboratory.
• Humans with aneuploid karyotypes often experience developmental abnormalities.
• Scientists identified the aneuploid as having 47 chromosomes instead of the normal 46.
• Aneuploidy is more common in aneuploid organisms than in euploid ones.
• The aneuploid fruit fly exhibited unexpected phenotypic traits due to its extra chromosome.