splint

Short definition from Wiktionary

Noun

1. 1
   A narrow strip of wood split or peeled from a larger piece.
2. 2
   A narrow strip of wood split or peeled from a larger piece: A splinter caught in the skin.
3. 3
   A dental device applied consequent to undergoing orthodontia.
4. 4
   A device to immobilize a body part.
5. 5
   A segment of armour consisting of a narrow overlapping plate.
6. 6
   Synonym of splent coal.
7. 7
   A bone found on either side of a horse's cannon bone; the second or fourth metacarpal (forelimb) or metatarsal (hindlimb) bone.
8. 8
   A disease affecting the splint bones, as a callosity or hard excrescence.

Verb

1. 1
   To apply a splint to; to fasten with splints.
2. 2
   To support one's abdomen with hands or a pillow before attempting to cough.
3. 3
   To split into thin, slender pieces; to splinter.