n (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
Return of the cassette tape. Just when you thought it was safe to throw out that old cassette deck, it appears as if magnetic tape is making a comeback. Nestled in a nook in the southwest corner of M-Theory Music in Mission Hills, one will find a selection of new cassettes by local bands, including the Drunken Draculas’ Dead Sounds, Kill Your Friends by Stopping Power , and Friends Become Enemies by Hellcake.
Feb. 19, 2014 - San Diego Reader
Emil Martinec in AScribe (press release) It is now understood that our construction, and Green and Schwarz's string, are all different pieces of a somewhat bigger theory, sometimes called M-theory, that we are still trying to grasp,Martinec said.