Definition of splint noun from the Oxford Advanced Learner's Dictionary

 

splint

 noun
noun
BrE BrE//splɪnt//
 
; NAmE NAmE//splɪnt//
 
Medical equipment
 
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a long piece of wood or metal that is tied to a broken arm or leg to keep it still and in the right position See related entries: Medical equipment Word Origin Middle English (referring to a thin piece of wood used to light a fire; also denoting a section of armour): from Middle Dutch, Middle Low German splinte ‘metal plate or pin’; related to splinter.
See the Oxford Advanced American Dictionary entry: splint