How long can a human live without water How long can human live without food? A human can't live without food for 3 or 4 days (however your body type is,) and a human can't live without water for 2 or 3 days.
Cavities refer to tooth decay, which occurs when specific types of bacteria produce acid that destroys the toothâs enamel and its underlying layer, the dentin. Signs & Symptoms. Cavity symptoms include: 1  Toothache. 2  Sensitivity to sweet, hot or cold foods or drinks.
cavity. English Collins Dictionary-English synonyms & Thesaurus &nbsp. cavity (cavities plural) 1 n-count A cavity is a space or hole in something such as a solid object or a person's body. FORMAL. 2 n-count In dentistry, a cavity is a hole in a tooth, caused by decay. (TECHNICAL). cavity wall (cavity walls plural) A cavity wall is a wall that consists of two separate walls with a space between them. Cavity walls help to keep out noise and cold. (mainly BRIT) n-count oft N n. ...cavity wall insulation.