semi-complete

Meaning

Adjective

• partially complete
• of or pertaining to a graph in which, for any two verticies $u$, $v$ in the graph, there is another vertex $w$ which is adjacent to both $u$ and $v$ (i.e. $\backslash \{u,\; w,\; v\backslash \}$ is a path in that graph).

Origin

• semi- + complete