Quartos

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Quarto \Quar"to\, n.; pl. {Quartos}.
     Originally, a book of the size of the fourth of sheet of
     printing paper; a size leaves; in present usage, a book of a
     square or nearly square form, and usually of large size.
     [1913 Webster]