The Multisexual Spectrum, also known as as mspec, bisexual umbrella, mspec umbrella or multi spectrum, is a sexuality spectrum/umbrella term consisting of any and all labels that represent the sexual attraction to more than one gender. The most well known labels on the spectrum are Bisexual, Pansexual, Polysexual, and Omnisexual.
The spectrum is often referred to as the Bisexual Umbrella, as bisexual is often seen as the umbrella term for all labels holding multigender attraction due to its fluidity. Any labels that withhold attraction to more than one gender will fall under here.
Not much is known behind the history of this term. It was coined to hold all identities that hold attraction to more than one gender.
The following labels are known to be apart of the spectrum. Feel free to add some.
Bisexual - a fluid identity that means the attraction to two or more genders.
Pansexual - The attraction to all genders, regardless of gender.
Polysexual - The attraction to many genders, but not all.
Omnisexual - The attraction to all genders, with regards to gender.
Abrosexual - When sexual attraction fluctuates.