Polygenesis
Full definition of polygenesis
Noun
polygenesis
(uncountable)- The genesis of a species from more than one ancestor.
- (biology) The theory that living organisms originate in cells or embryos of different kinds, instead of coming from a single cell; as opposed to monogenesis.
- (linguistics) The theory that languages developed independently in different places at different periods, as opposed to originating from a single source.