The definition of tart is something that has a sharp or sour taste.
Acid is defined as something that has a sour taste, or something that has a pH of less than 7 in chemistry.
Injuring or capable of injuring the feelings; caustic:
Having the sharp, acid taste of lemon juice, vinegar, green fruit, etc.
Find another word for acetic. In this page you can discover 20 synonyms, antonyms, idiomatic expressions, and related words for acetic, like: tart, acid, biting, sour, formic, tartaric, methanoic, ethanoic, propionic, orthophosphoric and pyro-gallic.