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A writing system designed for blind people in which text is encoded in raised dots that can be read by touch, each dot or group of dots standing for a letter, numeral, or punctuation mark. Compare optacon, optohapt. [Named after Louis Braille (1809–52), French musician and teacher, blind from an early age, who invented the system in 1829]

Subjects: Psychology — Public Health and Epidemiology.

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