də̇ˈplōsə̇s noun
( plural diplo·ses -ōˌsēz)
Etymology: New Latin, from Greek diplōsis action of doubling, from diploun to double (from diploos double) + -sis — more at double
1. : the alchemical process of increasing the amount of a precious metal by transmutation
2. : restoration of the somatic chromosome number by fusion of two gametes in fertilization — compare haplosis