Definitions

1. adjective

relating to or affecting the cheek or the buccal cavity (the mouth)

“The buccal mucosa was examined for signs of disease.”

2. noun

the mucous membrane lining the inner surface of the cheeks and lips, and the floor and roof of the mouth

“The dentist examined the buccal cavity of the patient.”

3. noun

a buccal cavity, especially in a dental or medical context

“The dentist inserted a small probe into the buccal cavity.”