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a point system of writing in which patterns of raised dots represent letters and numerals

French educator who lost his sight at the age of three and who invented a system of writing and printing for sightless people (1809-152)

a point system of writing in which patterns of raised dots represent letters and numerals

French educator who lost his sight at the age of three and who invented a system of writing and printing for sightless people (1809-152)

A system of printing for the blind, invented by Louis Braille, in which points raised above the surface are used to represent letters, as a, c, e,: g, etc.; the symbols themselves.