Definitions

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

  • adjective Of, relating to, or containing an alkali.
  • adjective Having a pH greater than 7.
  • adjective Having a relatively low concentration of hydrogen ions.
  • adjective Of or relating to a common disposable battery made of zinc and manganese dioxide.

from The Century Dictionary.

  • Pertaining to alkali; having the properties of an alkali.

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

  • adjective Of or pertaining to an alkali or to alkalies; having the properties of an alkali.
  • adjective certain substances, as lime, baryta, strontia, and magnesia, possessing some of the qualities of alkalies.
  • adjective potassium, sodium, cæsium, lithium, rubidium.
  • adjective a reaction indicating alkalinity, as by the action on limits, turmeric, etc.

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

  • noun An alkaline battery.
  • adjective Of, or relating to an alkali, one of a class of caustic bases.
  • adjective chemistry Having a pH greater than 7.

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

  • adjective relating to or containing an alkali; having a pH greater than 7

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

First attested in 1677. From alkali, ultimately from Arabic القلي (al-qaly, "ashes of the saltwort"), from قلى (qalā, "to roast in a pan, fry").

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Examples

  • One has to understand that when the term alkaline or acid is used it is the state of the ash of the metabolized food that is being measured.

    American Chronicle 2009

  • For, if we first use perhydrol as oxidizing agent in alkaline solution and then acidify with nitric acid, sulphur is not precipitated and fully correct results are obtained.

    Fritz Pregl - Nobel Lecture 1966

  • Recipe for tortillas: – Soften corn in alkaline water, then grind it fine, pat into round cakes, and bake on a thin, iron pan.

    Six Months in Mexico 1888

  • Private label alkaline battery sales rose 5.5 percent, in dollars, to a 18.9 percent share during the latest 52 week period, according to IRI.

    unknown title 2009

  • * CVS chooses Duracell, private-label alkaline batteries * Chain says will still sell Energizer lithium batteries By Jessica Wohl

    WN.com - Articles related to Popular Mom Bloggers Pen New Humor Book About Modern Motherhood, Hit The Road To Meet Real Moms 2009

  • * CVS chooses Duracell, private-label alkaline batteries * Chain says will still sell Energizer lithium batteries By Jessica Wohl

    WN.com - Articles related to Ford has balance sheet plan--executive chairman 2009

  • * CVS chooses Duracell, private-label alkaline batteries * Chain says will still sell Energizer lithium batteries By Jessica Wohl

    WN.com - Articles related to Ford has balance sheet plan--executive chairman 2009

  • But this year it is a little bit different, because there is a thing that they put into the gas called alkaline which is an additive for summer grade gasoline and that is in short supply.

    CNN Transcript Apr 13, 2008 2008

  • But this year it is a little bit different, because there is a thing that they put into the gas called alkaline which is an additive for summer grade gasoline and that is in short supply.

    CNN Transcript Apr 12, 2008 2008

  • The lakes can be characterized as alkaline, moderately hardwater lakes of relatively high mineral content, and are eutrophic.

    Ecoregions of Florida (EPA) 2008

  • Water cremation, also known as alkaline hydrolysis, is a process in which human remains are placed in a pressurized chamber filled with water and chemicals and eventually reduced to powder. Water cremation is legal in 28 states but not offered by many funeral homes.

    Boom in cremation hides surprising truths about what Americans really want when they die Tanya D. Marsh 2026

  • Alkaline hydrolysis is sometimes referred to as AH, flameless cremation, water cremation, green cremation, chemical cremation, liquid cremation, aquamation, biocremation™, or Resomation™. States and provinces that have approved the process use one of the following legal terms: alkaline hydrolysis, cremation, chemical disposition, or dissolution.

    Alkaline Hydrolysis 2026

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