folio ,
n :
A leaf of a book or manuscript. A page of a book, that is, one side of a leaf of a book. (printing) A page number. The even folios are on the left-hand pages and the odd folios on the right-hand pages. (paper) A sheet of paper folded in half. (books) A book made of sheets of paper each folded in half (two leaves or four pages to the sheet); hence, a book of the largest kind, exceeding 30 cm in height. (accounting) A page in an account book; sometimes, two opposite pages bearing the same serial number. (law, dated, 19th to early 20th century) A leaf containing a certain number of words; hence, a certain number of words in a writing, as in England, in law proceedings 72, and in chancery, 90; in New York, 100 words. Today is designated by UNESCO as International Literacy Day to highlight the importance of literacy.
