Learn how to say Ingression correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word ingress:
1 [mass noun] the action or fact of going in or entering; the capacity or right of entrance.
a place or means of access; an entrance.
[mass noun] the unwanted introduction of water, foreign bodies, contaminants, etc..
2 Astronomy & Astrology the arrival of the sun, moon, or a planet in a specified constellation or part of the sky.
the beginning of a transit.
late Middle English (in the sense ‘an entrance or beginning’): from Latin ingressus, from the verb ingredi ‘enter’