thirty-twomo

noun, plural thir·ty-two·mos.

1. a book size of about 3¼ × 5½ inches (8.3 × 14 cm), determined by printing on sheets that are folded to form 32 leaves or 64 pages. Symbol: 32mo, 32°
2. a book of this size.

adjective

3. printed, folded, or bound as a thirty-twomo.

noun plural -mos

1. a book size resulting from folding a sheet of paper into 32 leaves or 64 pagesOften written: 32mo, 32°