au·to·pol·y·ploid 
(ô′tō-pŏlə-ploid′)
(ô′tō-pŏlə-ploid′)adj.
Having more than two sets of chromosomes all derived from the same species.
n.
An organism having more than two sets of chromosomes, all of which were derived from the same species.
au′to·poly·ploi′dy n.