twelvemo

[ twelv-moh ]
/ ˈtwɛlv moʊ /

noun, plural twelve·mos, adjective

Origin of twelvemo

First recorded in 1810–20; twelve + -mo
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for twelvemo

twelvemo
/ (ˈtwɛlvməʊ) /

noun plural -mos

bookbinding another word for duodecimo
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012