Acidify \A*cid"i*fy\, v. t. [imp. & p. p. {Acidified}; p. pr. &
vb. n. {Acidifying}.] [L. acidus sour, acid + -fy: cf. F.
acidifier.]
1. To make acid; to convert into an acid; as, to acidify
sugar.
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2. To sour; to imbitter.
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His thin existence all acidified into rage.
--Carlyle.
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