Definitions
from Wiktionary, Creative Commons Attribution/ShareAlike License.
 adjective mathematics Of a
proposition that isequivalent to its dual.  adjective mathematics Of a
graph orpolyhedron that is the dual ofitself .
Etymologies
Sorry, no etymologies found.
Support
Help support Wordnik (and make this page adfree) by adopting the word selfdual.
Examples

In my model, once the collapsing “late” universe is past the selfdual boundary (the critical density I referred to) and thus inside the black hole and approaching the Cauchy horizon inside, its rotation framedrags it into a tremendously tightly wound spacetime “reel”, with each layer perhaps a Planck distance deep.
The Arrow of Time in Scientific American Sean 2008

Matsuo can even derive the selfdual 3form field strength in the M5brane worldvolume as various objects in the 2+1dimensional theory or their Hodge duals.
The Reference Frame 2010

For the teacher who wishes to pursue this theorem further, it is useful to know that it is a selfdual.
Recently Uploaded Slideshows sahmozac 2010

Some polyhedra, such as the sphere, are selfdual.
thingaday 2010 2010
bilby commented on the word selfdual
Cloning?
August 18, 2022