M-theoryn.

Brit.

/ˈɛmˌθɪəri/, U.S.

/ˈɛmˌθiəri/,

/ˈɛmˌθɪri/

Origin: Formed within English, by compounding. Etymons: M n., theory n.

Etymology: < M n. (apparently representing membrane n.) + theory n.

Particle Physics.

A unified theory involving branes that subsumes eleven-dimensional supergravity and the five ten-dimensional superstring theories.Quot. 1996 is from a paper received for publication earlier (23 October 1995) than quot. 1995 (17 December).

ΚΠ

1995 Re: Confinement: Massive Gauge Bosons in sci.physics (Usenet newsgroup) 17 Dec. String theorists are a mathematically sophisticated crew, so I'm sure they would enjoy an abstract description of the ‘M-theory’ (as it's called) from which one could then derive all its varied guises.

1996 J. H. Schwarz in Physics Lett. B. 367 97/1 If one assumes the existence of a fundamental theory in eleven dimensions (let's call it the ‘M theory’), this provides a powerful heuristic basis for understanding various results in string theory. [Note] This name was suggested by E. Witten.

1998 Sci. Amer. Feb. 59/2 Despite all these successes, physicists are glimpsing only small corners of M-theory; the big picture is still lacking.

2002 U.S. News & World Rep. 6 May 59/1 M-theory..holds that our universe may occupy just part of a many-dimensional mega-universe. In that picture, it could be shadowed by another universe on a different ‘brane’—M-theory jargon for 3-D membrane.

This is a new entry (OED Third Edition, March 2003; most recently modified version published online March 2022).

单词	m-theory
释义	M-theoryn. Brit. /ˈɛmˌθɪəri/, U.S. /ˈɛmˌθiəri/, /ˈɛmˌθɪri/ Origin: Formed within English, by compounding. Etymons: M n., theory n. Etymology: < M n. (apparently representing membrane n.) + theory n. Particle Physics. A unified theory involving branes that subsumes eleven-dimensional supergravity and the five ten-dimensional superstring theories.Quot. 1996 is from a paper received for publication earlier (23 October 1995) than quot. 1995 (17 December). ΚΠ 1995 Re: Confinement: Massive Gauge Bosons in sci.physics (Usenet newsgroup) 17 Dec. String theorists are a mathematically sophisticated crew, so I'm sure they would enjoy an abstract description of the ‘M-theory’ (as it's called) from which one could then derive all its varied guises. 1996 J. H. Schwarz in Physics Lett. B. 367 97/1 If one assumes the existence of a fundamental theory in eleven dimensions (let's call it the ‘M theory’), this provides a powerful heuristic basis for understanding various results in string theory. [Note] This name was suggested by E. Witten. 1998 Sci. Amer. Feb. 59/2 Despite all these successes, physicists are glimpsing only small corners of M-theory; the big picture is still lacking. 2002 U.S. News & World Rep. 6 May 59/1 M-theory..holds that our universe may occupy just part of a many-dimensional mega-universe. In that picture, it could be shadowed by another universe on a different ‘brane’—M-theory jargon for 3-D membrane. This is a new entry (OED Third Edition, March 2003; most recently modified version published online March 2022). < n.1995
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