from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To convert or become converted to acetic acid or vinegar.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To convert into acid or vinegar.
  • v. To turn acid - Encyc. Dom. Econ

from the GNU version of the Collaborative International Dictionary of English

  • intransitive v. To turn acid.
  • transitive v. To convert into acid or vinegar.

from The Century Dictionary and Cyclopedia

  • To convert into vinegar; make acetous.
  • To become acetous; be converted into vinegar.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. make sour or more sour
  • v. turn acidic


From Latin acetum ("vinegar") +‎ -fy or Back-formation from acetification. (Wiktionary)



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