1. 
   Interdental
   In`ter·den'tal adjective 1. Situated between teeth; as, an interdental space, the space between two teeth in a gear wheel. 2. (Phon.) Formed between the upper and lower teeth; as, interdental consonants.
   Found op http://www.encyclo.co.uk/webster/I/78
   
   
2. 
   interdental
   1. Between the teeth. ... 2. Denoting the relationship between the proximal surfaces of the teeth of the same arch. ... Origin: inter-+ L. Dens, tooth ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?interdental
   
   
3. 
   Interdental
   • (a.) Situated between teeth; as, an interdental space, the space between two teeth in a gear wheel. • (a.) Formed between the upper and lower teeth; as, interdental consonants.
   Found op http://thinkexist.com/dictionary/meaning/interdental/
   
   
4. 
   interdental
   Type: Term Pronunciation: in′tĕr-den′tăl Definitions: 1. Between the teeth. 2. Denoting the relationship between the proximal surfaces of the teeth of the same arch.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=45032
   
   

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