- The definition of carious is showing signs of decay, especially in the teeth.
An example of something carious is a set of teeth full of cavities.
having caries; decayed
Origin of cariousClassical Latin cariosus
Having caries, especially of the teeth; decayed.
- car′i·os′i·ty , car′i·ous·ness
(comparative more carious, superlative most carious)
- Having caries; decayed.
From French carieux.