Demiasexual or "ParcialAsexual" is an Asexual who can experience vague undefined, or partial rare sexual attraction. It is a very specific part of Greysexuality, but more specific. However, unlike Greysexuality, this arousal and sexual attraction never occurs unless there is an emotional connection, similar to Demisexuality. Unlike Demisexuality however, this attraction is usually vague and undefined and between Aegosexual, Greysexual, and Demisexual rather than experiencing complete sexual attraction like Demisexual or lack of sexual attraction attached to arousal like Aegosexual.
The term was first coined by user BadWolf2014 on AVEN forums to describe his own sexual orientation, as meaning "Asexual with Demisexual component". This term can also be applied to Cupiosexual Asexuals who do not feel attraction, but only desire sexual relations to those they are close with.
Demiasexual people unlike Asexual or Demisexual people can either specify gender attractions or don't and simply just use "Demiasexual". It is similiar to Greysexual in how it can be an umbrella term, or specify rare gender attractions.