SINCE 1828
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sixty-fourmo

noun
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sixty-four·​mo
plural -s

Definition of sixty-fourmo

: the size of a piece of paper cut 64 from a sheet also : paper or a page of this size —abbreviation 64mo —symbol 64°

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History and Etymology for sixty-fourmo

sixty-four + -mo

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Learn More About sixty-fourmo

Dictionary Entries Near sixty-fourmo

sixty-four-dollar question

sixty-fourmo

sixty-fourth

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Cite this Entry

“Sixty-fourmo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sixty-fourmo. Accessed 24 May. 2022.

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