Sixty-fourmo (noun) Definition, Meaning & Examples

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noun, plural six·ty-four·mos.
  1. a book size (about 2 × 3 inches; 5 × 7 centimeters) determined by printing on sheets folded to form 64 leaves or 128 pages.
  2. a book of this size. Symbols: 64mo, 64°
adjective
  1. printed, folded, or bound in sixty-fourmo.
noun plural -mos
  1. a book size resulting from folding a sheet of paper into 64 leaves or 128 pages, each one sixty-fourth the size of the sheet
  2. a book of this size
Sixty-fourmo (noun) Definition, Meaning & Examples

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