Definitions

1. adjective

relating to or situated near a tooth, especially near the gum

“The approximal bone is a key part of the oral anatomy.”

2. noun

the surface of a tooth close to the gum

“The dentist examined the approximal surface of the patient’s tooth.”

3. noun

a region of the tooth or other bone near the gum

“The approximal region of the tooth is susceptible to decay.”