plabic

English

Etymology

Blend of planar +‎ bicoloured.

Adjective

plabic (not comparable)

1. (graph theory) planar and bicoloured
   • 2016, Nima Arkani-Hamed, Grassmannian Geometry of Scattering Amplitudes, page 116:

     Of course, as illustrated in the example above, merely reordering the face variables of a fixed plabic graph by an odd permutation will change the orientation of the resulting volume-form.