From Longman Dictionary of Contemporary Englishfoliofo‧li‧o /ˈfəʊliəʊ $ ˈfoʊlioʊ/ noun (plural folios) [countable] technical 1 TCNa book made with very large sheets of paper2 TCNa single numbered sheet of paper from a book
Examples from the Corpus
folio• There were old vellum-bound folios of Serapion, Cornelius Agrippa and Paracelsus, and many alchemical works.• The information contained in the Domesday folios is, when used cautiously, also of value to the pre-plague period.• Because of its size and cost, copies in folio were of necessity confined to persons of substantial means.• On folio 4 verso, Siferwas depicted himself presenting the manuscript to Lovell.• If a stock-oriented ports folio makes you nervous and more likely to die young from a heart attack, forget it.• It approximates to a miniature octavo book, while others in the Dolls' House library are more like reduced folios.• And is so certain that this should be the end of it she starts to open the folio again.• They appeared in parts over five years from March 1755 to June 1760 and eventually made two folio volumes.Origin folio (1400-1500) Latin folium “leaf” 