sixteenmo

American  

[siks-teen-moh] / ˈsɪksˈtin moʊ /

noun

plural

sixteenmos

1. Also called sextodecimo.  a book size (about 4×6 inches; 10×15 centimeters) determined by printing on sheets folded to form 16 leaves or 32 pages.

2. a book of this size. 16mo, 16°

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adjective

1. printed, folded, or bound in sixteenmo; sextodecimo.

sixteenmo British  

/ ˈsɪksˈtiːnməʊ /

noun

1. Also called: sextodecimo.  Often written: 16mo.   16°.  a book size resulting from folding a sheet of paper into 16 leaves or 32 pages, each one sixteenth the size of the sheet

2. a book of this size

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Etymology

Origin of sixteenmo

First recorded in 1840–50; sixteen + -mo

Example Sentences

The printed page is relatively wide, and the whole effect of the book is that of a tiny quarto, though in reality the dimensions are those of a rather small sixteenmo of normal proportions.

From The Booklover and His Books by Koopman, Harry Lyman