See Also: octavo(medicine)
octavo(dictionary)

octavo (iou)



octavo noun. Pl. -os. L16.
[Latin (in) octavo in an eighth (sc. of a sheet), from octavus eighth.]
A size of book or paper in which each leaf is one-eighth of a standard printing-sheet. L16.
royal octavo: see ROYAL adjective.
A book or page of this size. E18.