exogenesis

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noun

The theory that life on Earth is of extraterrestrial origin.

Scrabble 18

Meanings

nounexogenesis (uncountable)
  1. uncountableThe theory that life on Earth is of extraterrestrial origin.

    Panspermia, one possible form of exogenesis, is the notion that the seeds of life are scattered throughout the universe.

    2011, Gerald Benedict, The Maya: 2012: the end of the world, or the dawn of enlightenment?, page 21
    1 more example

    The hybridization of the viroid and fungoid (creating a life that transmogrifies and creeps) can be tied to the theory of exogenesis. The theory of exogenesis holds that life has always already existed and that life on earth has come from elsewhere.

    2012, Ben Woodard, Slime Dynamics
  2. uncountableExternal origin.

    The exogenesis theory forwarded by Targulian reveals the role of boundary in the solid-air and solid-water systems: for their interaction.

    2002, Eurasian Soil Science - Volume 35, page S-116
    2 more examples

    In later development, the merozoites assume a peripheral location and grow outward at the surface, with the limiting membrane of the mother meront forming the outer membrane of the merozoite, as in exogenesis.

    1982, Peter L. Long, The Biology of the Coccidia, page 123

    When they exist eternally, their exogenesis is God's necessarily eternal existence; when they exist in action, their exogenesis lies in the durational existence of other individual (already existent in action) things.

    2012, A. Campos, Spinoza's Revolutions in Natural Law

Origin

Cite this entry
APA

exogenesis. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/exogenesis

MLA

“exogenesis.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/exogenesis. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “exogenesis,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/exogenesis.

Source: exogenesis on Wiktionary, CC BY-SA 4.0.