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of or like an .
containing an .
having the properties of an .
having a pH value greater than 7.
Compare (def 5c).
Contemporary Examples

Things on the other side of the ledger, at a pH above 7, are alkaline (also called “basic” as in acid-base).
Alkalinizing Someone to Improve His or Her Health Is Simple-Minded, Fatuous, and Dangerous Kent Sepkowitz January 28, 2014

Clearly this is not identical to the Organic Liaison supplement, as vinegar is acid, not alkaline.
The Scientology Diet? Kim Masters March 17, 2010

Historical Examples

One measure of this air saturates two of alkaline air, and with it forms the vitriolic ammoniac.
Heads of Lectures on a Course of Experimental Philosophy: Particularly Including Chemistry Joseph Priestley

Account for the fact that a solution of borax in water is alkaline.
An Elementary Study of Chemistry William McPherson

The ingredients in alkaline glazes are soda-ash, whiting, feldspar, flint and oxide of tin.
The Potter’s Craft Charles F. Binns

They may be suspected if the milk is alkaline in reaction and has a disguised taste.
The Home Medical Library, Volume V (of VI) Various

An instrument for measuring the alkaline force or purity of any of the alkalis of commerce.
A Dictionary of Arts, Manufactures and Mines Andrew Ure

As often as once in two or three days, an alkaline bath should be taken.
An Epitome of Homeopathic Healing Art B. L. Hill

The climate was arid, and the dry soil was loaded with alkaline salts, supposedly destructive to most vegetable life.
The Awakening of the Desert Julius C. Birge

The reaction of the gangrenous matter in certain stages was alkaline.
Andersonville, Volume 3 John McElroy

having the properties of or containing an alkali

1670s, “pertaining to alkalis,” from alkali + -ine (1). Of soils, attested from 1850.

alkaline al·ka·line (āl’kə-lĭn, -līn’)

Of, relating to, or containing an alkali.

Having a pH greater than 7.

(āl’kə-lĭn, -līn’)

Capable of neutralizing an acid. Bases are alkaline.

Relating to an alkali compound.

Having a pH greater than 7.

Having a relatively low concentration of hydrogen ions.


Read Also:

  • Alkaline battery

    noun a dry cell storage battery with a long life, which uses an alkaline electrolyte of potassium hydroxide

  • Alkaline earth

    any of the oxides of barium, radium, strontium, calcium, and, sometimes, magnesium. Historical Examples The acid and alkaline earth must be well diffused through the whole dough. A Dictionary of Arts, Manufactures and Mines Andrew Ure Sulphuret, a combination of an alkaline earth or metal with sulphur as, Sulphuret of iron, a combination of iron […]

  • Alkaline-earth metal

    any of the group of bivalent metals including barium, radium, strontium, calcium, and, usually, magnesium, the hydroxides of which are alkalis but less soluble than those of the alkali metals. alkaline-earth metal n. Any of a group of metallic elements including calcium, strontium, magnesium, barium, beryllium, and radium. alkaline-earth metal Any of a group of […]

  • Alkaline phosphatase

    a phosphatase active in an alkaline medium. alkaline phosphatase n. A phosphatase with an optimum functioning at pH 8.6; it is present throughout the body.

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