(take up mentally; "he absorbed the knowledge or beliefs of his tribe")
(become similar to one's environment; "Immigrants often want to assimilate quickly")
(make similar; "This country assimilates immigrants very quickly")
(take (gas, light or heat) into a solution)
(become similar in sound; "The nasal assimilates to the following consonant")
(capable of taking (gas, light, or liquids) into a solution; "an assimilative substance)