alkali has definitions from the field of chemistry
1
[ noun ] (chemistry) any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water

Synonyms

base

Examples

"bases include oxides and hydroxides of metals and ammonia"

Used in print

(Francis J. Johnston and John E. Willard, "The...)

The mixture was then extracted with alkali and with water following which the carbon_tetrachloride was distilled on a Vigreux column , a 25 % center cut being retained which was then degassed under vacuum in the presence of * * f .

2
[ noun ] (chemistry) a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture

Related terms

salt alkalize

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