IPA: /ˌkær.i.oʊˈdʒɛn.ɪk/
KK: /kɛrɪəˈdʒɛnɪk/
Relating to the process of causing tooth decay or cavities in teeth.
Sugary foods are often cariogenic and can lead to cavities if consumed in excess.
Cariogenic → It is formed from "caries" (from Latin *caries*, meaning decay or rot) and "-genic" (from Greek *genes*, meaning producing or causing). The word "cariogenic" refers to something that causes tooth decay.
Think of 'decay' ('caries') and remember that 'cariogenic' means something that causes decay, especially in teeth.