magic marker(n = noun.artifact) felt tip, felt-tip pen, felt-tipped pen - a pen with a writing tip made of felt (trade name Magic Marker);
is a kind of pen

as if by magic, billiard marker, black magic, genetic marker, magic, magic bullet, magic eye, magic lantern, magic mushroom, magic number, magic realism, magic spell, magic square, magic trick, marker, white magic, yard marker