Fulmian

Fulmian is a xenogender from the element system. It is a combination of the masculine element fervian (fire), and the undefined element ventulian (air). It is represented by the element of lightning. The noun form of the word is fulmi (ex: I am fulmi).

History
Fulmian was first known to be coined on January 14th, 2018, along with the flag, but it was likely coined earlier than that on a Google spreadsheet.

Flag
The flag's colors are yellow, grey and black, the colors of lightning in a storm, with a diamond in the center, representing the fervian and ventulian triangles stuck together.

Etymology
The word fulmian comes from the Latin word fulmen, meaning "lightning".