十じゅう二に折おりじ字FuriganaMeanings1nounduodecimo foldingA bookbinding term referring to a sheet folded into twelve leaves (24 pages). Used in historical or technical contexts about book formats.この古ふるい本ほんは十じゅう二に折おりの形けい式しきで製せい本ほんされている。This old book is bound in duodecimo format.
