noun
folio
A large book format made by folding each sheet of paper once.
The printer chooses folio format for the book's large illustrations.
Etymology
The Latin phrase concerns the leaf. In printing, folio specifies a sheet folded once to create two leaves, producing a relatively large book format.
More examples
- This atlas is printed in folio, with room for detailed maps.
- Each sheet in a folio is folded once to make two leaves.
- The library stores its heavy folios on the bottom shelf.
Forms
folio · folios