Noun sourness has 3 senses
- sour, sourness, tartness - the taste experience when vinegar or lemon juice is taken into the mouth
--1 is a kind of taste, taste sensation, gustatory sensation, taste perception, gustatory perception
--1 has particulars: acidity, acidulousness
- sourness, sour, acidity - the property of being acidic
--2 is a kind of taste property
--2 has particulars: acerbity, tartness; vinegariness, vinegarishness
- sulkiness, sullenness, moroseness, sourness - a sullen moody resentful disposition
--3 is a kind of ill nature
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