1. a book size resulting from folding a sheet of paper three times to form eight leaves
Usage: printing
2. a book of octavo size
Usage: printing

1. having the size of an octavo
Usage: printing

Examples

• The publisher decided to print the novel in octavo format.
• She collected rare octavo editions of 18th-century poetry.
• The library’s octavo volumes were stored on the middle shelves.
• This octavo edition fits perfectly in a coat pocket.
• The printer folded the large sheet to create an octavo size.
• Most modern paperbacks are larger than traditional octavo books.