妖術,巫術
black magic n : the belief in magical spells that harness occult forces or evil spirits to produce unnatural effects in the world [syn: {sorcery}, {black art}, {necromancy}]
black magic(Or "{FM}") A technique that works, though nobody really understands why. More obscure than {voodoo programming}, which may be done by {cookbook}. Compare {black art}, {deep magic}, and {magic number}. (2001-04-30)