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forty-eightmo
[ fawr-tee-eyt-moh ]
noun
, plural for·ty-eight·mos
- a book size of about 2½ × 4 inches (6 × 10 centimeters), determined by printing on sheets folded to form 48 leaves or 96 pages. : 48mo, 48°
- a book of this size.
adjective
- in forty-eightmo.
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Word History and Origins
Origin of forty-eightmo1
First recorded in 1885–90; forty-eight + -mo
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