Genderheat

 is a biogender related to heat, light, fire, or anything that gives off heat.

Definitions

 * Genderheat: a xenogender related to heat, light, fire, or anything that gives off heat/light. - Mason, 2018

History
Genderheat was first coined on December 4, 2018 by Tumblr user Mason. The flag was created on January 26, 2019 by the same person.