buccolingual
/ˌbʌkəˈlɪŋɡwɪəl/ or /ˌbuːkəˈlɪŋɡwɪəl/Definitions
1. adjective
relating to or situated between the cheek and tongue
“The buccolingual ridges in the human mouth play a crucial role in grinding food.”
2. noun
a ridge or fold between the cheek and tongue
“In anatomy, the buccolingual fold is a key feature of the oral cavity.”