Definition of "m-theory" []

• (particle physics) a theory that involves an eleven-dimensional universe in which the weak and strong forces and gravity are unified and to which all the string theories belong (noun)

WordNet. Princeton University. 2010.

• "Bell's theorem, that you refer to, was produced by a man who realized that it was Einstein who proposed a scientific definition of reality and who suggested a possible way to test it (albeit one that, like superstrings or m-theory does not yet seem amenable to testing.)"
• "We have relativity and quantum mechanics, some theories which have made steps in showing how they can be reconciled, alethic morphologies like string theory and m-theory which are hotly disputed."
• "It showed in one fell swoop that all of these other string theories were actually special cases of the more general m-theory case – essentially different manifestations of a more complete theory."