autŏmătus, um (os, on), adj., = αὐτόματος,
self - moving , voluntary , spontaneous : plausus, Petr. 50, 1.—Hence, subst.: autŏmătŏn or -um , n , a self-moving machine , an automaton , Vitr. 9, 9; Petr. 54, 4; 140, 10; * Suet. Claud. 34 fin.