octavo

Meanings

1. 1
   noun

   a book or page size produced by folding a full sheet three times to make eight leaves

   The catalog described the volume as a small octavo.

2. 2
   adj

   made or printed in octavo format

   The letter was written on the flyleaf of an octavo book.

From Latin octavo, 'in the eighth,' the ablative of octavus, 'eighth.' In printing, the term refers to a sheet folded so that it forms eight leaves, or sixteen pages, and then to the resulting size of book.

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