Centrois is a leptrois term for nongender. It is defined as being at the center of the negatrois-positrois spectrum of a given gender. It is similar to neutrois, but neutrois is at the center of the negatrois-positrois spectrum of every gender.
Centrois is also similar to centrigender but is specifically in the middle of an antigender-eugender pair.
Flags
The centrois flags were coined on October 26th, 2020, by a user going by Anderson. The purple represents an ocean of genders all around, the blue represents them filtering through, and the pink represents the final result of the centrois gender.