01 a. Having eighteen leaves to a sheet; as, an octodecimo form, book, leaf, size, etc.
-
1.
Having eighteen leaves to a sheet; as, an octodecimo form, book, leaf, size, etc.
Entry
2 senses · 2 variants
Webster, 1913
Octodecimo
· Oc·todec·i·mo
· IPA
02 n. A book composed of sheets each of which is folded into eighteen leaves; hence; indicating more or less definitely a size of book, whose she…
pl.
Octodecimos
-
1.
A book composed of sheets each of which is folded into eighteen leaves; hence; indicating more or less definitely a size of book, whose sheets are so folded; -- usually written 18mo or 18°, and called eighteenmo. Also: eighteenmo