twelve·​mo ˈtwelv-(ˌ)mō How to pronounce twelvemo (audio)
plural twelvemos
: the size of a piece of paper cut 12 from a sheet
also : a book, a page, or paper of this size

Word History

First Known Use

1816, in the meaning defined above

Time Traveler
The first known use of twelvemo was in 1816

Dictionary Entries Near twelvemo

Cite this Entry

“Twelvemo.” Dictionary, Merriam-Webster, Accessed 23 Sep. 2023.

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