Ambigender

Ambigender is a static bigender identity in which two genders are experienced simultaneously with no fluidity or shifting. In addition to being a type of bigender identity, ambigender also falls under the multigender umbrella term.

History
The term "ambigender" as a gender identity dates back at least to the mid-1990s; it was mentioned in a list of terms in Cross-Talk, a transgender community magazine.

In a 2010 encyclopedia, ambigender is listed as a type of "androgyne" gender. "Androgyne identities include pangender, bigender, ambigender, nongendered, agender, gender fluid, or intergender."