Etymology
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acquired (adj.)

c. 1600, "gained by effort," past-participle adjective from acquire. Of diseases, "occurring after birth, thus not dependent on heredity," 1842 (opposed to congenital); acquired immune deficiency is attested by 1980; acquired immune deficiency syndrome by 1982. Acquired taste is attested from 1734.

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Definitions of acquired

acquired (adj.)
gotten through environmental forces;
acquired characteristics (such as a suntan or a broken nose) cannot be passed on
From wordnet.princeton.edu