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early 15c., from Latin assimilatus "feigned, pretended, fictitious," past participle of assimilare "to make like," from ad- "to" (see ad-) + simulare "make similar," from similis "like, resembling" (see similar). Originally transitive (with to); intransitive use first recorded 1837. Related: Assimilated; assimilating.
assimilate as·sim·i·late (ə-sĭm'ə-lāt')
v. as·sim·i·lat·ed, as·sim·i·lat·ing, as·sim·i·lates
To consume and incorporate nutrients into the body after digestion.
To transform food into living tissue by the process of anabolism.