Category:Octavo

Oc*ta"vo, n.;pl. Octavos. Etym: [l. in octavo; in in + octavo, abl. Of octavus. See octave.]

Defn: a book composed of sheets each of which is folded into eight Leaves; hence, indicating more or less definitely a size of book so Made; -- usually written 8vo or 8º.

Octavo Oc*ta"vo, a.

Defn: having eight leaves to a sheet; as, an octavo form, book, leaf, Size, etc.