Definition of "sourness" [sour•ness]

• The quality or condition of being sour, usually said of human personalities. (noun)

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• "The idea is to flavor the liquid well with the spices and extract all the sourness from the kokum."
• "This is a brine pickle made without vinegar; the sourness comes from the fermentation process, as is traditional."
• "Whenever I experience this, whenever a laconic sourness is thrust into my spirit, I close my eyes and seek for something inside me that can anchor me against the unpleasant wave that threatens to engulf me, cap-a-pie."