Sour is a taste that is often described as being sharp or tangy. It is one of the five basic tastes, along with sweet, salty, bitter, and umami.
Sour foods often contain acids, such as citric acid or acetic acid. These acids react with the taste receptors on our tongues, which sends a signal to our brains that we are tasting something sour.
Some common sour foods include lemons, limes, grapefruits, sour candies, and vinegar.
The lemon juice made the lemonade sour.
Adjective: Having a sharp, acid taste.
Verb: To make or become sour.
Noun: A sour substance or thing.
The etymology of the word "sour" can be traced back to the Old English word "sūr", which also meant "sour". This word is thought to come from the Proto-Germanic word *sūraz, which also meant "sour". The Proto-Germanic word is ultimately derived from the Proto-Indo-European word *súHros, which also meant "sour".
What foods are sour in taste?
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