acidify

v (pt, pp -ied) [I, Tn] (cause sth to) become acid （使）变酸.

ace, acerbic, acerbity, acetate, acetone, acetylene, ache, achievable, achieve, achieve one's goals, achievement, achiever, Achilles, Achilles' tendon, aching, achromatic, achy, acid, acid rain, acidic, acidity, acidly, acidosis, acidulated, acidulous, acknowledge, acknowledged, acknowledgement, acknowledgement (also acknowledgment), acknowledging, acknowledgment, acme, acne, acolyte, aconite, acorn, acoustic, acoustically, acoustics, acquaint,