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Six dot positions in two columns of three.
Also known as: Six-dot cell, Braille frame, Literary braille cell
The braille cell is a frame of six dot positions arranged in two columns of three. Every braille character is one cell, formed by raising some combination of those six positions, which gives sixty-three possible patterns plus the empty cell.
Is the unit of braille: one cell of six positions, some raised and some flat, forming one character.
Contexts: Language and transcription
Yields sixty-three distinct patterns plus the space, which is fewer than the characters most writing systems need — the reason braille relies so heavily on indicators and contractions.
Contexts: Language and transcription
Six raised dot positions set out as two vertical columns of three dots each, forming a small upright rectangle of points.