Assimilation (linguistics), in studying language, the way a sound in a word becomes closer to a neighboring sound.
Assimilation (biology), changing a nutrient into the fluid or solid substance of the body, through digestion and absorption.
Cultural assimilation, the way a smaller group of people gradually copies the customs and attitudes of the larger culture around it. For cultural assimilation of Native Americans in the United States, see Americanization (of Native Americans).
In psychoanalysis, when conscious and unconscious contents penetrate one another
In computer science, the changing of anti-virus software to find a new virus
In typesetting, the amount that a typeface can make mirror images and other similarities between letters
This disambiguation page lists articles that are about something that can be called Assimilation. If an internal link led you here, you may wish to change the link to point directly to the article meant.