polysomy
Noun
Meaning
congenital defect of having one or more extra chromosomes in somatic cells
Source: WordNetSynonyms
aneuploidy
trisomy
monosomy
chromosomal aberration
hexasomy
tetrasomy
aneusomy
polysomia
pentasomy
non-disjunction
chromosome duplication
chromosomal instability
chromosome rearrangement
genomic instability
heptasomy
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