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alkaline visit Britannica.com
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American Heritage Dictionary -
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Of, relating to, or containing an alkali.
Having a pH greater than 7.
Having a relatively low concentration of hydrogen ions.
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The American Heritage® Dictionary of the English Language, Fourth Edition
WordNet -
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Share This alkaline adjective relating to or containing an alkali; having a pH greater than 7; "alkaline soils derived from chalk or limestone" [ant: amphiprotic , acidic ]
WordNet® 3.0, © 2006 by Princeton University.
The American Heritage Science Dictionary -
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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.
The American Heritage® Science Dictionary
Webster's Revised Unabridged Dictionary -
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Al"ka*line\ (?; 277), a. [Cf. F. alcalin.] Of or pertaining to an alkali or to alkalies; having the properties of an alkali.
Alkaline earths , certain substances, as lime, baryta, strontia, and magnesia, possessing some of the qualities of alkalies.
Alkaline metals , potassium, sodium, c[ae]sium, lithium, rubidium.
Alkaline reaction , a reaction indicating alkalinity, as by the action on limits, turmeric, etc.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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