trisomy
tri·somy
noun
1.
chrosomal abnormality in which there is one more than the normal number of chromosomes in a cell
Origin
From trisome + -y.
Related words
Word family
Broader terms
Narrower terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.