Check out the egg moves at serebii.net, as you can see below, Meditite can learn it through breeding but Abra can't.
meditite: http://serebii.net/pokedex-dp/307.shtml
abra: http://serebii.net/pokedex-dp/063.shtml
Holy shit, that's exactly what I was after! You're the best, thanks dude.