D defs.my
Entry 2 senses · 2 variants Webster, 1913

Vigesimo-quarto

· Vi·ges·i·mo-quar·to · IPA
01 a. Having twenty-four leaves to a sheet; as, a vigesimo-quarto form, book, leaf, size, etc.
  1. 1.
    Having twenty-four leaves to a sheet; as, a vigesimo-quarto form, book, leaf, size, etc.
02 n. A book composed of sheets each of which is folded into twenty-four leaves; hence, indicating more or less definitely a size of book so made…
pl. -tos
  1. 1.
    A book composed of sheets each of which is folded into twenty-four leaves; hence, indicating more or less definitely a size of book so made; -- usually written 24mo, or 24°.