Duodecimal :: Duodecimal (a.) Proceeding in computation by twelves; expressed in the scale of twelves.
Duodecimal :: Duodecimal (n.) A twelfth part; as, the duodecimals of an inch..
Duodecimal :: Duodecimal (n.) A system of numbers, whose denominations rise in a scale of twelves, as of feet and inches. The system is used chiefly by artificers in computing the superficial and solid contents of their work..
Duodecimo :: Duodecimo (a.) Having twelve leaves to a sheet; as, a duodecimo from, book, leaf, size, etc..
Duodecimo :: Duodecimo (n.) A book consisting of sheets each of which is folded into twelve leaves; hence, indicating, more or less definitely, a size of a book; -- usually written 12mo or 12�..