hydraulĭcus — Lewis & Short
hydraulĭcus, a, um, adj., = u(drauliko/s,
I of or belonging to the water-organ, hydraulic:
machinae,water-organs, Vitr. 9, 9; 10, 13;
called also organa,Plin. 7, 37, 38, § 125; Suet. Ner. 41.