sour
adjectiveDefinition of sour
(Entry 1 of 3)
1
: being, inducing, or marked by the one of the five basic taste sensations that is produced chiefly by acids and is characteristic of lemon juice
sour pickles
— compare bitter entry 1 sense 1a, salty entry 1 sense 1b, sweet entry 1 sense 1, umami entry 2
2a(1)
: having the acid taste or smell of or as if of fermentation : turned
sour milk
(2)
: of or relating to fermentation
(2)
: hostile, disenchanted
went sour on Marxism
4
: acid in reaction
—used especially of soil
5
: containing malodorous sulfur compounds
—used especially of petroleum products
sour
nounDefinition of sour (Entry 2 of 3)
1a
: something sour
… they assimilated many Anglo-American sweet pickles and began adding more sugar to their sours.— William Woys Weaver
b
: the taste sensation produced chiefly by acids — compare bitter entry 2 sense 1b, salty entry 2, sweet entry 3 sense 2, umami entry 1
2
: a cocktail consisting of a liquor (such as whiskey), lemon or lime juice, sugar, and sometimes ice
sour
verb
soured;
souring;
sours
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