Selengender is a xenogender with a deep connection to the crystal selenite, and its properties and (potentially) chemical formulation. The crystal selenite is a very luminous crystal, and is commonly used in witchcraft for cleansing and meditation.
History
The term selengender was coined in early 2021 by Instagram user edenmogai (also known as sorenmogai). Lux designed the flag at the same time and posted it to lux's account.