polygenetic
நீரகம் முதலியவற்றோடு இணைந்து ஒன்றிற்கு மேற்பட்ட சேர்மங்கள் ஆக்கவல்ல.
Pol`y*ge*net"ic, a. 1. Having many distinct sources; originating at various places or times. 2. (Biol.) Of or pertaining to polygenesis; polyphyletic. 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.