अंग्रेजी अंग्रेजी शब्दकोश

Having twenty-four leaves to a sheet; as, a twenty-fourmo form, book, leaf, size, etc.

A book composed of sheets, each of which is folded into twenty-four leaves; hence, indicating more or less definitely a size of book whose sheets are so folded; -- usually written 24mo, or 24¡.