1. Formed between the upper and lower teeth
   "interdental consonants" 
2. Situated between teeth
   "an interdental space"

Encyclopedia: Interdental

• fistulous withers
• fit
• fit in
• fit out
• fit the bill
• fitch
• fitchew
• fitful
• fitfully
• fitfulness
• fitly
• fitment
• fitness
• fits and starts
• fitted
• fitted out
• fitted sheet
• fitter
• fitting
• fittingly
• fittingness
• Fitzgerald
• five
• five dollar bill
• five hundred