Wolffian

Wolffian is an alternative term for biological male. It is a synonym for male-bodied, used to describe someone that is of the male sex.

Wolffian individuals have at least two of any of the following features

• a penis
• testicle(s)
• a scrotum
• a prostate
• XY chromosomes
• seminal vesicle(s)
• an epididymis
• a vas deferens

Or they at least

• are capable of producing sperm
• have testosterone as their dominant, primary hormone (unless they lack all other previously listed features)

Ideally, a Wolffian refers to a cissex dyadic individual who is was correctly assigned male at birth. However, the term can apply to female-to-males that are both transgenital & transhormonal, and sometimes CTM individuals, as phenotypic sex is the primary classification for sex at large. Transsexual males (that are AFAB) being excluded from the wolffian category is a transphobic practice, as it excludes trans males from male categorizations and separates them from the male identity, despite them being both anatomically and psychologically male. Through a sex-binary lens, someone may also identify as wolffian if they lack the majority of dominant müllerian traits.

The term is a less-gendered approach to biological identification. The term 'biological male,' while technical and correct, is often used by transphobes to reduce trans women down to their anatomy. Still, should Wolffian not be used for someone outside of a medical, biological or anatomical context.

Wolffian is not synonymous with being assigned male at birth, for reasons being that individuals assigned male at birth can be müllerian or CTF, ASAB labelling can be mistaken for intersex individuals, and that not every wolffian is AMAB.

Common Definitions

“	Wolffian: a person having testicles / dominantly testonized from the uterus;	”
–arco-pluris

“	a perisex person whose innate sex development is in line with societal expectations of "biological male"	”
–intervex

References

1. https://web.archive.org/web/20250221130138/https://arco-pluris.tumblr.com/post/176422613517/biosex-adjective-glossary-these-biosexual