tribadic
/ˈtraɪbædɪk/Definitions
1. adjective
relating to or characterized by a relationship between three people, especially a romantic or sexual relationship between three individuals
“The novelist explored the themes of love and desire in her novel about a tribadic relationship.”
2. noun
a relationship between three people, especially a romantic or sexual relationship between three individuals
“The study of tribadic relationships aimed to understand the dynamics and challenges faced by such groups.”