psȳchŏmantīum or -ēum, i, n., = ψυχομαντεῖον,
a place where the spirits of the dead were interrogated , a place of necromancy , Cic. Tusc. 1, 48, 115.— Plur. , Cic. Div. 1, 58, 132.
psȳchomantīum (-ēum) ī, n , ψυχομαντεῖον, a place for inquiring of the dead, place of necromancy. ...
An Elementary Latin Dictionary