alkali

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alkali /ˈælkəˌlaɪ/ noun
plural alkalies or alkalis
alkali
/ˈælkəˌlaɪ/
noun
plural alkalies or alkalis
Learner's definition of ALKALI
chemistry
: a substance that has a bitter taste and that forms a salt when mixed with an acid
[count]
[noncount]
◊ An alkali has a pH of more than 7.
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