noun

acidity

acidity, sourness

The coffee has a high acidity.

The coffee has a high acidity.

We measured the acidity of the soil.

We measured the acidity of the soil.

the acidity of ((sth.)) the level of acid in something The acidity of the wine was perfect.

Synonyms: sourness, tartness; Antonyms: alkalinity, basicity

From 'acid' + '-ity', a suffix indicating a state or quality. The quality of being acid.

The '-ity' ending often means 'the quality of', like in 'clarity' or 'purity'. So, acidity is the quality of being acid.

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