buccal vs facial

buccal

adj
  • Of, relating to, near, involving, or supplying the cheek. 

  • Of, relating to, or lying in the mouth. 

  • Administered 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. 

facial

adj
  • Of or affecting the face. 

  • Concerned with or used in improving the appearance of the face. 

  • (of a law or regulation validity) On its face; as it appears (as opposed to, as it is applied). 

noun
  • (in some contact sports) A foul play which involves one player hitting another in the face. 

  • A kind of early silent film focusing on the facial expressions of the actor. 

  • A personal care beauty treatment which involves cleansing and moisturizing of the human face. 

  • A sex act of male ejaculation onto another person's face. 

How often have the words buccal and facial occurred in a corpus of books? (source: Google Ngram Viewer )