Braille

Louis
[loo-is,, loo-ee;; French lwee] /ˈlu ɪs,, ˈlu i;; French lwi/ (Show IPA), 1809–52, French teacher of the blind.
a system of writing or printing, devised by L. Braille for use by the blind, in which combinations of tangible dots or points are used to represent letters, characters, etc., that are read by touch.
to write or transliterate in Braille characters.
Contemporary Examples

History’s Greatest Book Burners Judith Miller September 6, 2010
TEDx Talks Have a Disability Problem—but This Incredible Young Woman Is Working to Change That Nina Strochlic November 4, 2014
Killed by Donald Sterling’s Racism Michael Daly May 13, 2014

Historical Examples

Elizabeth Gilbert and Her Work for the Blind Frances Martin
Story of My Life Helen Keller
A Blind Esperantist’s Trip to Finland and Sweden, to Attend the Fourteenth International Esperanto Congress W. Percy Merrick
The Happy Venture Edith Ballinger Price
Workhouse Characters Margaret Wynne Nevinson
The Syndic C.M. Kornbluth
Story of My Life Helen Keller

noun
a system of writing for the blind consisting of raised dots that can be interpreted by touch, each dot or group of dots representing a letter, numeral, or punctuation mark
any writing produced by this method Compare Moon
verb
(transitive) to print or write using this method
noun
Louis (lwi). 1809–52, French inventor, musician, and teacher of the blind, who himself was blind from the age of three and who devised the Braille system of raised writing

human language
/breyl/ (Often capitalised) A class of writing systems, intended for use by blind and low-vision users, which express glyphs as raised dots. Currently employed braille standards use eight dots per cell, where a cell is a glyph-space two dots across by four dots high; most glyphs use only the top six dots.
Braille was developed by Louis Braille (pronounced /looy bray/) in France in the 1820s. Braille systems for most languages can be fairly trivially converted to and from the usual script.
Braille has several totally coincidental parallels with digital computing: it is binary, it is based on groups of eight bits/dots and its development began in the 1820s, at the same time Charles Babbage proposed the Difference Engine.
Computers output Braille on braille displays and braille printers for hard copy.
British Royal National Institute for the Blind (http://rnib.org.uk/wesupply/fctsheet/braille.htm).
(1998-10-19)