chrosomal abnormality

Thesaurus

Noun

1.

chrosomal abnormality - any change in the normal structure or number of chromosomes; often results in physical or mental abnormalities chromosomal aberration, chromosomal anomaly, chromosonal disorder aberrance, aberrancy, aberration, deviance - a state or condition markedly different from the norm monosomy - chromosomal abnormality consisting of the absence of one chromosome from the normal diploid number trisomy - chrosomal abnormality in which there is one more than the normal number of chromosomes in a cell sex-linked disorder - any disease or abnormality that is determined by the sex hormones; "hemophilia is determined by a gene defect on an X chromosome"