A system of printing or writing for the blind in which the characters and numerals are represented by patterns of raised tangible points or dots. It was invented by Louis Braille, a French teacher of the blind.
a system using raised dots that allows blind students to "read" using their fingertips
NOUN: A system of embossed characters formed by using a Braille cell, a combination of six dots consisting of two vertical columns of three dots each. Each simple Braille character is formed by one or more of these dots and occupies a full cell or space. Some Braille may have eight dots. Invented by Louis Braille of France in the 1820s, Braille replaced embossed print.