back•spacePronunciation: (bak'spās"), [key]
—v., -spaced, -spac•ing,
to shift the carriage or typing element of a typewriter one space backward by depressing a special key.
to move the cursor, printhead, etc., toward the beginning of the data.
the space made by backspacing.
Also called back'spac"er, back'space key".
the labeled key on a typewriter or computer keyboard used for backspacing.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.