chromosomal aberration

Từ điển WordNet v3.1 - WordNet Dictionary

noun

any change in the normal structure or number of chromosomes;
often results in physical or mental abnormalities
• Syn:
chromosomal anomaly, chrosomal abnormality, chromosonal disorder
• Hypernyms:
aberrance, aberrancy, aberration, deviance
• Hyponyms:
monosomy, trisomy, sex-linked disorder