FACTO´RIUM an oil-press (Pallad. 11.10, 1), so
called from the factor, who pressed the olives
(Cat. Agr. 64, 1; 66, 1). The name factum was given to the
oil pressed out at one making (Varr. R. R. 1.24, 3).
A Dictionary of Greek and Roman Antiquities. William Smith, LLD. William Wayte. G. E. Marindin. Albemarle Street, London. John Murray. 1890.