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duodecimo

American  
[doo-uh-des-uh-moh, dyoo-] / ˌdu əˈdɛs əˌmoʊ, ˌdyu- /

noun

plural

duodecimos
  1. Also called twelvemo.  a book size of about 5 × 7½ inches (13 × 19 centimeters), determined by printing on sheets folded to form 12 leaves or 24 pages. 12 mo, 12°

  2. a book of this size.


adjective

  1. in duodecimo; twelvemo.

duodecimo British  
/ ˌdjuːəʊˈdɛsɪˌməʊ /

noun

  1. Also called: twelvemo.  Often written: 12mo.   12°.  a book size resulting from folding a sheet of paper into twelve leaves

  2. a book of this size

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of duodecimo

First recorded in 1650–60; short for Latin in duodecimō “in twelfth”

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Fleurieu refers to the Famous Voyage as printed in duodecimo, in London, in the year 1600.

From The Oregon Territory Its History and Discovery by Twiss, Travers

Charles prepared two editions of the Welsh Bible, one in duodecimo, published in 1806, and another in octavo, completed just before his death. 

From A Biographical Sketch of some of the Most Eminent Individuals which the Principality of Wales has produced since the Reformation by Williams, Robert

His well-worn copy of the Spectator, in eight duodecimo volumes, presented by him to my grandfather, now graces one of my book shelves.

From My Unknown Chum by Fairbanks, Charles Bullard

The account published by Wafer, excepting what relates to the Isthmus of Darien, consists of short notices set down from recollection, and occupying in the whole not above fifty duodecimo pages.

From History of the Buccaneers of America by Burney, James

Mr. Longworth informs me the work will be published early in February in two duodecimo volumes.

From The Poems of Philip Freneau, Volume I (of III) by Freneau, Philip