PANSPERMY
Etymology
Noun
panspermy (uncountable)
(biology) The doctrine of the widespread distribution of germs, from which under favorable circumstances bacteria may develop.
(biology) The doctrine that all organisms must come from living parents; biogenesis.
Source: Wiktionary
Pan"sper`my, n. Etym: [Pan- + Gr. (Biol.)
(a) The doctrine of the widespread distribution of germs, from which
under favorable circumstances bacteria, vibrios, etc., may develop.
(b) The doctrine that all organisms must come from living parents;
biogenesis; -- the opposite of Ant: spontaneous generation.
Source: Webster’s Unabridged Dictionary 1913 Edition