Quadritetremar

Quadritetremar is equal to \(f_{\psi(M\uparrow\uparrow4)}(10)\). The term was coined by Denis Maksudov.

Etymology
The 3 parts of the name, "quadri", "tetr", and "emar", mean \(4\), \(\uparrow\uparrow\), and "M". So the full name indicates the ordinal index of the number.