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alkali
noun (alkalis or alkalies ) chem a hydroxide of any of various metallic elements, eg sodium or potassium, that dissolves in water to produce an alkaline solution, and neutralizes acids to form salts.
[14c in the form alcaly : from Arabic al-qali calcinated ashes]
noun (alkalis or alkalies ) chem a hydroxide of any of various metallic elements, eg sodium or potassium, that dissolves in water to produce an alkaline solution, and neutralizes acids to form salts.
[14c in the form alcaly : from Arabic al-qali calcinated ashes]
alkaline
adjective , chem
1 relating to or having the properties of an alkali.
2 denoting a solution with a pH greater than 7, owing to the presence of an excess of hydroxide ions.
[17c]
alkalinity noun .
adjective , chem
1 relating to or having the properties of an alkali.
2 denoting a solution with a pH greater than 7, owing to the presence of an excess of hydroxide ions.
[17c]
alkalinity noun .
alkaloid
noun , biochem any of numerous nitrogen-containing organic compounds with toxic or medicinal properties that occur naturally in certain plants, eg caffeine, nicotine.
[19c]
noun , biochem any of numerous nitrogen-containing organic compounds with toxic or medicinal properties that occur naturally in certain plants, eg caffeine, nicotine.
[19c]
alkane
noun , chem the general name for a hydrocarbon of the series of general formula CnH2n+2.
noun , chem the general name for a hydrocarbon of the series of general formula CnH2n+2.
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