from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An advocate of panspermism; one who believes that life on Earth originated in outer space.
from The Century Dictionary and Cyclopedia
- n. Same as panspermatist.
Sorry, no etymologies found.
The panspermist theory was further confirmed by the inge - nious experiments devised by John Tyndall to prove that exposed infusions of sterile organic matter fail to produce bacteria when surrounded by optically pure air.