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[uh-sid-uh-fahy] /əˈsɪd əˌfaɪ/
verb (used with or without object), acidified, acidifying.
to make or become acid; convert into an acid.
to make or become sour.
Origin of acidify
First recorded in 1790-1800; acid + -ify
Related forms
acidifiable, adjective
acidification, noun
acidifier, noun
reacidification, noun
reacidify, verb, reacidified, reacidifying.
semiacidified, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for acidification
Contemporary Examples
Historical Examples
  • In one series the solutions were titrated directly, and after acidification in the other.

    Chlorination of Water Joseph Race
  • Three processes are thus employed in obtaining alcohol from molasses; dilution, acidification, and fermentation.

  • This leaves all the fine flavor in it, unmixed with flavors resulting from acidification.

    Hints on Dairying T. D. Curtis
  • The acidification of the sulphur by nitric or nitro-muriatic acid is likewise a slow and unpleasant operation.

  • But without this exposure and acidification, the butter is insipid and comparatively flavorless.

    Hints on Dairying T. D. Curtis
  • A series of experiments in making Roquefort were tabulated to show the rate of acidification from various initial points.

    The Book of Cheese

    Charles Thom and Walter Warner Fisk
  • The development of this acidification before the addition of rennet is known as the ripening of the milk.

    The Book of Cheese

    Charles Thom and Walter Warner Fisk
British Dictionary definitions for acidification


verb -fies, -fying, -fied
to convert into or become acid
Derived Forms
acidifiable, adjective
acidification, noun
acidifier, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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acidification in Medicine

acidify a·cid·i·fy (ə-sĭd'ə-fī')
v. a·cid·i·fied, a·cid·i·fy·ing, a·cid·i·fies
To make or become acid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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