Müllerian is a term describing an individual who has ovaries and/or a predominantly estradiolized uterus.[1] The term was originally coined to describe those whose fetal development favored the Müllerian ducts.[2] However, the term is also used to an alternative to describing a "dyadic female," or someone who isn't intersex.[3]

Müllerian flag
Müllerian symbol

Common Characteristics

Under the more specific definition, a müllerian individual has all of the following traits:[3]

  • A vagina
  • A uterus
  • Ovaries
  • Breasts
  • Create egg cells
  • Can become pregnant
  • Has estrogen as their primary sex hormone

Etymology

The term comes from the Müllerian ducts.[2]

History

The term was proposed by a trans woman as an alternative for the term "ovarian," in the comment section of a blog from the early 2010s.[2]

The more specific definition was coined by Tumblr user mourningmogaicrew on August 31, 2021.[3]

Flags & Symbols

The müllerian flag was created by Tumblr user mourningmogaicrew on August 31, 2021. There is no known meaning behind the flag.[3]

The more symbol was also created by mourningmogaicrew on the same day, and is based off the female symbol.[3]

Sex Relationship Description
Wolffian Counterpart An individual whose fetal development favored the wolffian ducts.

Sources

  1. arco-pluris. “Biosex Adjective Glossary.” Tumblr, 29 July 2018, arco-pluris.tumblr.com/post/176422613517/biosex-adjective-glossary-these-biosexual.
  2. 2.0 2.1 2.2 mogai-ringo. “🌟Astrogods🌙.” Tumblr, mogai-ringo.tumblr.com/post/665433167091662848/yo-i-originally-saw-a-trans-woman-propose.
  3. 3.0 3.1 3.2 3.3 3.4 mourningmogaicrew. “Wolffian and Müllerian Flags/Symbols.” Tumblr, 1 Aug. 2021, mourningmogaicrew.tumblr.com/post/661062411443437568/wolffian-and-m%C3%BCllerian-flagssymbols.