DUODECIMO

Etymology

Noun

duodecimo (plural duodecimos)

(paper, printing) A size of paper, so called because it is originally made by folding and cutting a single sheet from a printing press into 12 leaves; (5 by 7¾ inches): 6.5 to 7.5 inches high, approximately 4.5 inches wide.

A sheet or page of that size.

(printing) A book having pages of that size.

Synonyms

• (paper size): twelvemo, 12mo, 12º

• (book size): twelvemo, 12mo, 12º, D

Source: Wiktionary

Du`o*dec"i*mo, a. Etym: [L. in duodecimo in twelfth, fr. duodecimus twelfth, fr. duodecim twelve. See Dozen.]

Definition: Having twelve leaves to a sheet; as, a duodecimo from, book, leaf, size, etc.

Du*o*dec"i*mo, n.; pl. Duodecimos (.

Definition: 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 12º.

Source: Webster’s Unabridged Dictionary 1913 Edition