Dyadic, also known as Perisex, Endosex, and Juxtasex, is a term used to refer to individuals who are not intersex, meaning individuals who were born with sex characteristics which can be categorized into one of the binary sexes, and who do not have any sort of chromosomal or hormonal deviation which is realized later in life. Dyadic individuals can have any gender identity, including transgender and non-binary.
Dyadic individuals fall into one of two categories:
1) AFAB dyadic.
- Have XX chromosomes.
- Was born with external genitals which were identified as a vagina/vulva.
- Was born with a uterus and ovaries.
- Upon natural puberty, experienced development of secondary sex characteristics indicative of increased estrogen levels.
Dyadic individuals that meet these qualification are typically AFAB, although, not all AFAB individuals are dyadic.
2) AMAB dyadic:
- Have XY chromosomes.
- Was born with external genitals which were identified as a penis and scrotum.
- Was born with testes.
- Upon natural puberty, experienced development of secondary sex characteristics indicative of increased testosterone levels.
Dyadic individuals that meet these qualification are typically AMAB, although, not all AMAB individuals are dyadic.
If someone meets some, but not all the requirements of a certain category, or meets some requirements in both categories, they can be considered intersex. If someone is born dyadic, but changes their sex characteristics later in life (either through surgery or HRT), such that they no longer meet the qualifications listed above they may identify as altersex and/or transsex.
The term is not an identity by itself. It was created by the intersex community as a way to describe those who are not intersex, to avoid referring to non-intersex individuals as "normal" or "natural," which implies that intersex individuals are not normal or natural. It is used in the same way that the transgender community use the term cisgender to refer to someone who is not transgender, and how ace-spec individuals use the term allosexual to refer to someone who isn't ace-spec.
The flag was coined by Deviantart user FlagsForCisHets on August 4th of 2016. It has no confirmed meaning.
Terminology and controversy
There is no consensus on what terms should be used to refer to non-intersex individuals. The most well known terms are dyadic, endosex and perisex; however, some intersex individuals dislike the use of the term term dyadic, because it meaning "two" reinforces the sex binary. Other intersex individuals dislike the term perisex because, according to the same blog that published the term, it was created by non-intersex individuals who dislike being called dyadic, however they aren't even sure what mod coined it specifically and claimed they were mod for only few days. Endosex is also used by some intersex organizations and was coined in 1999, used the first time at a symposium on 2000, and some intersex individuals prefer endosex over perisex and dyadic. The term intrasex is the most logical word for non-intersex individuals, but it is not used often because of how similar it looks and sounds to intersex. The term juxtasex was created as alternative, which some intersex individuals prefer, but it's not widely known.