Lewis Short
glădĭātūra (noun F) : gladius, gladiator
* A fighting of gladiators, or their profession (post-Aug. and very rare): adduntur e servitiis gladiaturae destinati,Tac. A. 3, 43: ut requiem gladiaturae haberet, Schol. Juv. 6, 105; Firm. 5, 27.
Charlton T. Lewis, Charles Short, A Latin Dictionary