ingression

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/ɪnˈɡɹɛʃən/

noun

The act or process of entering or intruding.

“ingression of the sea onto land”

OriginEnglish ingress ← Latin ingressus →
Scrabble 11
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Meanings

nouningression (countable and uncountable, plural ingressions)

plural ingressions

  1. countableuncountableThe act or process of entering or intruding.

    ingression of the sea onto land

  2. countableuncountablemetaphysicsThe process by which a potentiality enters into actuality.

    […] it is by virtue of the individual essence that an eternal object remains precisely the same eternal object through all its ingressions […]

    1967, Whitehead's Metaphysics, Edward Pols, page 164
  3. countableuncountablebiologyThe inward migration of cells from the blastula during gastrulation.

    Ingression of ectodermal cells from the area between the velar lobes establishes the cerebral ganglia and similar ingressions produce the other ganglia.

    1940, Libbie Henrietta Hyman, The Invertebrates, page 496

Origin

  1. Latiningressus
  2. Englishingress
  3. Englishingression

From ingress + -ion.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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