Meaning of POLYSOMY

WordNet Dictionary
	Definition:		[n]  congenital defect of having one or more extra chromosomes in somatic cells
	Websites:
	See Also:		birth defect, congenital abnormality, congenital anomaly, congenital defect, congenital disorder
Biology Dictionary
	Definition:		An abnormal genetic condition in which all the chromosomes are present, and some but not all are present in greater than normal numbers.