Dyadic refers to people who have sexual qualities that can be classified under one of the binary genders (male or female). It is generally used to describe people who don't identify as intersex. Regardless, dyadic men and women can still have a variety of gender and sexual identities, such as gay and transgender.
More About Dyadic
The term dyadic is used to prevent discriminating against intersex people. Its usage avoids the presumption that non-intersex people are the norm. It is important to be conscientious in the terms used to describe others. It is best to refer to people by name to avoid assuming their gender identity.