Alkaline meaning

ălkə-lĭn, -līn
The definition of alkaline is any substance having a base pH higher than 7.

Certain types of food (such as broccoli) are examples of something alkaline because their pH is higher than 7.

adjective
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Having a pH more than 7
adjective
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Of, relating to, or containing an alkali.
adjective
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Relating to an alkali compound.
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Capable of neutralizing an acid. Bases are alkaline.
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Of or relating to a common disposable battery made of zinc and manganese dioxide.
adjective
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Of, like, or having the properties of an alkali.
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Containing an alkali.
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Having a relatively low concentration of hydrogen ions.
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An alkaline battery.
noun
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Of, or relating to an alkali, one of a class of caustic bases.
adjective
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(chemistry) Having a pH greater than 7.
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Having a pH greater than 7.
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Origin of alkaline

  • 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”).

    From Wiktionary