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quarto

[ kwawr-toh ]
/ ˈkwɔr toʊ /
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noun, plural quar·tos.
a book size of about 9½ × 12 inches (24 × 30 centimeters), determined by folding printed sheets twice to form four leaves or eight pages. Symbols: 4to, 4°
a book of this size.
adjective
bound in quarto.
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Origin of quarto

First recorded in 1580–90; short for New Latin in quartō “in fourth” (quartō, ablative singular of quartus “fourth”)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use quarto in a sentence

British Dictionary definitions for quarto

quarto
/ (ˈkwɔːtəʊ) /

noun plural -tos
a book size resulting from folding a sheet of paper, usually crown or demy, into four leaves or eight pages, each one quarter the size of the sheetOften written: 4to,
(formerly) a size of cut paper 10 in. by 8 in. (25.4 cm by 20.3 cm)

Word Origin for quarto

C16: from New Latin phrase in quartō in quarter
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
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