'Panspermatist' definitions:

Definition of 'Panspermatist'

From: GCIDE

Panspermatist \Pan*sper"ma*tist\, Panspermist \Pan"sper`mist\, n. (Biol.) A believer in panspermy; one who rejects the theory of spontaneous generation; a biogenist. [1913 Webster]