1.AdjectiveOf, relating to, near, involving, or supplying the cheek.
"buccal surface of the molars; buccal branch of the facial nerve"
2.AdjectiveOf, relating to, or lying in the mouth.
"buccal cavity"
3.AdjectiveAdministered in the mouth, not by swallowing but by absorption through the skin of the cheek; often by placing between the top gum and the inside of the lip.
4.Adjectivesupralaryngeal, not laryngeal or glottal.