'Panspermist' definitions:

Definition of 'Panspermist'

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]