Definition of pansperm in English:

pansperm

noun

rare
  • The elementary principle or germ of all things; (now) specifically the microorganisms or chemical precursors to life thought to be present in space by proponents of panspermia. Formerly also: †a collection of all different types of seed (obsolete).

Origin

Mid 18th century; earliest use found in Nathan Bailey (d. 1742), lexicographer and schoolmaster. From pan- + sperm, in early use probably after panspermatic, in later use after panspermia or panspermy.

Pronunciation

pansperm

/ˈpanspəːm/