Definition of Braille noun from the Oxford Advanced American Dictionary

 

Braille

 noun
noun
NAmE//breɪl//
 
braille[uncountable]
 
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a system of printing for blind people in which the letters of the alphabet and the numbers are printed as raised dots that can be read by touching them All the exhibits are labeled in Braille.
See the Oxford Advanced Learner's Dictionary entry: Braille