Nulltrois, nullitrois, nulitrois, nulois, nullois, nulitois, nullitois, or nultrois is a leptral descriptor of nullity. It lacks a single definition but can include:
- Gendernull
- Zerogenders
- Ambitrois of negatrois × positrois
- Null
- Genderless
- Nongender
- Genderfree
- Mnioct
- Gendervoid
- Genderempty[1]