Polygenetic \Pol`y*ge*net"ic\, a.
1. Having many distinct sources; originating at various
places or times.
[1913 Webster]
2. (Biol.) Of or pertaining to polygenesis; polyphyletic.
[1913 Webster]
{Polygenetic mountain range} (Geol.), one which is composite,
or consists of two or more monogenetic ranges, each having
had its own history of development. --Dana.
[1913 Webster]