triploidy
/ˈtrɪploʊdi/Definitions
1. noun
A condition in which an organism has three sets of chromosomes instead of the usual two.
“The geneticist studied the effects of triploidy on the development of the plant species.”
2. noun
A condition in which a cell or organism has three sets of chromosomes instead of the usual two, often resulting from errors during meiosis.
“The medical team diagnosed triploidy in the fetus and advised the parents about their options.”