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¡.
Vogais: uoeio
Consoantes: ddcm
dioecism, decime, dodecagon, dodgem, dodecagynia, decision, dioecian, dodecane, deism, dodecagynian.