sour /sowr/

1. Having an acid taste or smell
2. Turned, rancid or fermented
3. Rank
4. (of animals) heavy, strong
5. Cold and wet
6. Embittered, crabbed, or peevish
7. Disagreeable
8. Inharmonious (lit and figurative)
9. Bad, unsuccessful
10. Containing sulphur compounds
11. (of soil) lacking in lime and thus unfruitful for crops

1. To make sour
2. To treat with dilute acid

To become sour

1. An acid drink, such as a gin or whisky cocktail that contains lemon or lime juice
2. An acid solution used in bleaching, curing skins, etc

sourˈing noun

1. The process of turning or becoming sour
2. Vinegar
3. The crab-apple
4. Treatment with dilute acid in bleaching

sourˈish adjective

sourˈishly adverb

sourˈly adverb

sourˈness noun

sourˈ-cold adjective (Shakespeare).

sour cream noun

Cream soured by a ferment

sourˈ-crout see sauerkraut

sourˈdough noun

1. Leaven
2. A piece of dough reserved to leaven a new batch
3. Bread made in this way
4. In Canada and Alaska, an old-timer

sourˈ-eyed adjective

Morose-looking

sour gas noun (mining)

Natural gas containing impurities, mainly hydrogen sulphide

sourˈ-gourd noun

1. The cream of tartar tree
2. A tropical grass related to millet
3. Sorrel

sour grapes

See under grape¹

sour mash noun (US)

1. New mash mixed with old to increase acidity and promote fermentation
2. Whiskey made in this way

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