ingression

noun

in·​gres·​sion ə̇nˈgreshən How to pronounce ingression (audio)
plural -s
1
: the action of entering : entrance
2
: the process whereby potentialities or eternal objects enter into or become complex actual occasions or events
the ingression of an object into an event is the way the character of the event shapes itself in virtue of the being of the objectA. N. Whitehead
3
: inward migration in gastrulation of large yolk-laden macromeres formed by holoblastic but markedly unequal cleavage

Word History

Etymology

Middle English, from Latin ingression-, ingressio, from ingressus (past participle) + -ion-, -io -ion

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Cite this Entry

“Ingression.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ingression. Accessed 20 Dec. 2025.

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