Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun trisomy

1 sense of trisomy

Sense 1
trisomy -- (chrosomal abnormality in which there is one more than the normal number of chromosomes in a cell)
       => chromosomal aberration, chromosomal anomaly, chrosomal abnormality, chromosonal disorder -- (any change in the normal structure or number of chromosomes; often results in physical or mental abnormalities)