TRISOMY

Pronunciation (US): (GB):

Meaning:

Chrosomal abnormality in which there is one more than the normal number of chromosomes in a cell

Classified under:

Hypernyms ("trisomy" is a kind of...):

chromosomal aberration; chromosomal anomaly; chromosonal disorder; chrosomal abnormality (any change in the normal structure or number of chromosomes; often results in physical or mental abnormalities)

Hyponyms (each of the following is a kind of "trisomy"):

Down's syndrome; Down syndrome; mongolianism; mongolism; trisomy 21 (a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation)