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1) to make acid
2) to convert into an acid vi to become acid
acid·i·fi·able ə-.sid-ə-'fī-ə-bəl, a- adj
acid·i·fi·ca·tion -fə-'kā-shən n
acid·i·fi·er ə-'sid-ə-.fī(-ə)r, a- n
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acid·i·fy (ə-sidґĭ-fi) to render acid, as by addition of a strong acid. to become acid.Medical dictionary. 2011.