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a tooth


From Middle English tooth, from Old English tōþ ‎(tooth), from Proto-Germanic *tanþs ‎(tooth), from Proto-Indo-European *h₃dónts ‎(tooth). Cognate with Scots tuth, tuith ‎(tooth), North Frisian toth, tos ‎(tooth), Dutch tand ‎(tooth), German Zahn ‎(tooth), Danish and Swedish tand ‎(tooth), Icelandic tönn ‎(tooth), Welsh dant ‎(tooth), Latin dēns ‎(tooth), Lithuanian dantìs ‎(tooth), Ancient Greek ὀδούς ‎(odoús)/ὀδών ‎(odṓn, tooth), Armenian ատամ ‎(atam), Persian دندان ‎(dandân), Sanskrit दत् ‎(dát, tooth). Related to tusk.



tooth ‎(plural teeth)

  1. A hard, calcareous structure present in the mouth of many vertebrate animals, generally used for eating.
  2. A sharp projection on the blade of a saw or similar implement.
  3. A projection on the edge of a gear that meshes with similar projections on adjacent gears, or on the circumference of a cog that engages with a chain.
  4. (botany) A pointed projection from the margin of a leaf.
  5. (animation) The rough surface of some kinds of cel or other films that allow better adhesion of artwork.
  6. (figuratively) taste; palate
    I have a sweet tooth: I love sugary treats.
    • Dryden
      These are not dishes for thy dainty tooth.


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tooth ‎(third-person singular simple present tooths, present participle toothing, simple past and past participle toothed)

  1. To provide or furnish with teeth.
  2. To indent; to jag.
    to tooth a saw
  3. To lock into each other, like gear wheels.
    (Can we find and add a quotation of Moxon to this entry?)