interdental
adjective, noun
interdental is an adjective meaning “Pertaining to the space between the teeth” (English Wiktionary, September 2026). It is spelled I-N-T-E-R-D-E-N-T-A-L, and it appears about once in every 14 million words in written English (wordfreq, 2021 data).
What does interdental mean?
adjective
- 1
Pertaining to the space between the teeth.
It is recommended to use an interdental brush, or dental floss, to clean between the teeth.
- 2
Pronounced with the tongue between the top and bottom teeth.
noun
- 1
A speech sound pronounced with the tongue between the top and bottom teeth.
- 2
A small toothbrush for cleaning in between adjacent teeth.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of interdental
- more interdental comparative
- most interdental superlative
- interdentals plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is interdental?
Interdental appears about once in every 14 million words in written English, the 114,361st most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Interdental in Spanish, French, German and Portuguese
In the sense pertaining to the space between the teeth:
| Language | Words |
|---|---|
| French | interdentaire |
| German | interdental |
| Spanish | interdental |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does interdental come from?
From inter- + dental.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).