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Longman Dictionary of Contemporary English
▪ Again, acidifying old water is not suitable.
▪ Because cryptocorynes acidify the water, they form a favorable medium for the survival and spawning of many popular fish species.
▪ Bennett and Williams suggest that the cells of opening or closing traps acidify their own walls by releasing hydrogen ions.
▪ It appears that deciduous trees do not acidify in this way.
▪ Once your water is soft it is easily acidified using peat filtration.
The Collaborative International Dictionary

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.

  2. To sour; to imbitter.

    His thin existence all acidified into rage.


vb. 1 to make something (more) acidic or sour; to convert into an acid. 2 to neutralize alkalis, as to '''acidify''' sugar 3 to sour, to embitter.

  1. v. make sour or more sour [syn: sour, acidulate, acetify] [ant: sweeten]

  2. turn acidic; "the solution acetified" [syn: acetify] [ant: alkalize]

  3. [also: acidified]

Usage examples of "acidify".

Boil off the gas, add ammonia until a precipitate is formed, and then acidify somewhat strongly with acetic acid.

The bismuth is precipitated by the addition of ammonic carbonate, and the solution, after filtering and acidifying with nitric acid, is re-electrolysed.

The filtered solution is acidified with hydrochloric acid, warmed, and precipitated with sodium sulphite.

The acidified landscape could scarcely support vegetation, and gaunt crags, bare and rocky, loomed above the road.

This having been ascertained, the remainder of the fluid was evaporated nearly to dryness, and acidified with sulphuric acid.

Aspirin was acetylsalicylic acid, and if it was taken in sufficient quantities, it would acidify you.

Suddenly I seemed in possession of a trick appointment book, its pages now porous, unable to hold my writing, or acidified, so as to render my ink invisible, or even with whole days missing.

The resin is prepared by making a tincture of the rhizome, removing from this the greater part of the spirit by distillation and pouring the remaining liquor into water acidified with hydrochloric acid.