Noun: chromosomal anomaly
- Any change in the normal structure or number of chromosomes; often results in physical or mental abnormalities
"Down syndrome is caused by a chromosomal anomaly";
- chromosomal aberration, chromosomal abnormality, chromosomal disorder
Derived forms: chromosomal anomalies
Type of: aberrance, aberrancy, aberration, deviance, deviancy
Encyclopedia: Chromosomal anomaly