from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An apparatus for measuring alkalinity.

from The Century Dictionary.

  • noun An instrument for the quantitative analysis of carbonated alkali.
  • noun An instrument used for ascertaining the strength of alkalis, or the quantity of alkali in caustic potash and soda.

from the GNU version of the Collaborative International Dictionary of English.

  • noun An instrument to ascertain the strength of alkalies, or the quantity of alkali in a mixture.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A device used to measure alkalinity


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