The Collaborative International Dictionary of English v.0.48:

Splint \Splint\, n. [Akin to D. splinter,G. splinter, splitter,
   Dan. splint, Sw. splint a kind of spike, a forelock (in
   nautical use), Sw. splintato splint, splinter, Dan. splinte,
   and E. split. See Split, v. t., and cf. Splent.]
   1. A piece split off; a splinter.
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   2. (Surg.) A thin piece of wood, or other substance, used to
      keep in place, or protect, an injured part, especially a
      broken bone when set.
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   3. (Anat.) A splint bone.
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   4. (Far.) A disease affecting the splint bones, as a
      callosity or hard excrescence.
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   5. (Anc. Armor.) One of the small plates of metal used in
      making splint armor. See Splint armor, below.
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            The knees and feet were defended by splints, or thin
            plates of steel.                      --Sir. W.
                                                  Scott.
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   6. Splint, or splent, coal. See Splent coal, under
      Splent.
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   Splint armor,a kind of ancient armor formed of thin plates
      of metal, usually overlapping each other and allowing the
      limbs to move freely.

   Splint bone (Anat.), one of the rudimentary, splintlike
      metacarpal or metatarsal bones on either side of the
      cannon bone in the limbs of the horse and allied animals.


   Splint coal. See Splent coal, under Splent.
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