sixmo
/ˈsɪksmoʊ/
noun
- A book size in which each leaf is one-sixth of a full sheet of paper, typically about 5 to 6 inches tall.
- The library's special collection includes several sixmo pamphlets from the 18th century.
- The rare edition was printed in sixmo, making it a compact volume.
- Collectors often seek out sixmo books for their portability and charm.