1. Organisms or cells that have an abnormal number of chromosomes, not a multiple of the haploid number.
Usage: biology; genetics; plural of aneuploid

Examples

• Aneuploids often result from errors during meiosis or mitosis.
• Down syndrome is caused by aneuploids with three copies of chromosome 21.
• Scientists study aneuploids to understand chromosomal abnormalities.
• Many aneuploids are lethal and do not survive to birth.
• The laboratory identified several aneuploids in the cell culture samples.