64mo
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A size of paper or book: 1.87"-2.5" x 2.5"-3.125". uncountable, usually
"39. Reed, C. A., H. F. Harvey, & R. I. Brasher. WESTERN BIRD GUIDE: Birds of the Rockies & West to the Pacific. 286 pgs with index. Color prints throughout. Red fabricoid, with chipped cardboard slipcase. Oblong 64mo. NY: Doubleday, Doran, 1937. Very good condition, with fair case. $21.50 [115273]"
Example
More examples"39. Reed, C. A., H. F. Harvey, & R. I. Brasher. WESTERN BIRD GUIDE: Birds of the Rockies & West to the Pacific. 286 pgs with index. Color prints throughout. Red fabricoid, with chipped cardboard slipcase. Oblong 64mo. NY: Doubleday, Doran, 1937. Very good condition, with fair case. $21.50 [115273]"
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.