octoploid
/ˈɒktəplɔɪd/(also octaploid) Biology
adjective
Containing eight homologous sets of chromosomes (i.e. four times the diploid complement); made up of somatic cells of this kind.
noun
An octoploid individual, type, or species.
Origin
1920s; earliest use found in American Naturalist. From octo- + -ploid.