autotetraploidy
/ˌɔːtə(ʊ)ˈtɛtrəplɔɪdi/Biology
noun
The state or condition of being autotetraploid; the process of chromosome doubling through which an autotetraploid is formed.
Origin
1930s; earliest use found in Philosophical Transactions of the Royal Society of London. From auto- + tetraploidy, after autotetraploid.