Glacian is a xenogender from the element system. It is combination of the feminine element eluvian (water), and the neutral element tellusian (earth), and is represented by the element of ice. One whose gender element is a combination of feminine and neutral would be glacian. The noun form of the word is glaci (ex: I am glaci).
History
Glacian was first known to be coined on January 14th, 2018, along with the flag[1], but it was likely coined earlier than that on a Google spreadsheet[2].
Flag
The flag's colors are blue and white, the colors of ice, with a diamond in the center, representing the eluvian and tellusian triangles stuck together.
Etymology
The word glacian comes from the Latin word glacies, meaning "ice"[3].