interdental /in-tər-denˈtl/

1. Between the teeth
2. Relating to the surfaces of the teeth where they adjoin (dentistry)
3. Pronounced with the tip of the tongue between upper and lower teeth (phonetics)

• unceremoniousness
• uncertain
• uncertainly
• uncertainness
• uncertainnesses
• uncertainties
• uncertainty
• uncertainty principle
• uncertificated
• uncertified
• unces
• uncessant
• unchain
• unchained
• unchaining
• unchains
• unchallengeable
• unchallengeably
• unchallenged
• unchallenging
• unchancier
• unchanciest
• unchancy
• unchangeabilities
• unchangeability