Misnomer

Noun

 * 1) A use of a term asserted to be misleading.
 * Calling it a driveway is a bit of a misnomer, since you don't drive on it, you park on it.
 * 1) A term asserted to be widely used incorrectly.
 * Chinese checkers is a misnomer since the game has nothing to do with China.
 * 1) A term whose sense in common usage conflicts with a technical sense.