Hypertext Webster Gateway: "interdental"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Interdental \In`ter*den"tal\, a.
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.
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