The meaning of SOUR is 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. How to use sour in a …

Jul 22, 2025 · Wondering why a sour taste in your mouth is leaving you with a permanent pucker? A family medicine physician reveals the nine most common causes.

SOUR definition: 1. having a sharp, sometimes unpleasant, taste or smell, like a lemon, and not sweet: 2…. Learn more.

1. To make or become sour. 2. To make or become disagreeable, disillusioned, or disenchanted.

SOUR meaning: 1 : having an acid taste that is like the taste of a lemon tart; 2 : having the unpleasant taste or smell of food that is no longer fresh

Find 769 different ways to say SOUR, along with antonyms, related words, and example sentences at Thesaurus.com.

Definition of sour adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Sour definition: Having a taste characteristic of that produced by acids; sharp, tart, or tangy.

to make bitter, disillusioned, or disagreeable: One misadventure needn't have soured him. That swindle soured a great many potential investors.

Mar 25, 2025 · In chemistry, sourness is measured by the pH level of a substance. A lower pH level indicates a higher concentration of hydrogen ions, which corresponds to a more acidic or …