octodecimo

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octodecimo

Where it comes from

From Latin ablative of octusdecimus (“eighteenth”).

noun octodecimos

A size of a sheet of paper resulting from folding and cutting a sheet of paper into eighteenths (3.5"–4.5" x 4.9"–5.9").
Similar: 18mo, eighteenmo, 18º
A book consisting of pages of that size.
Similar: 18mo, eighteenmo, 18º, T

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MLA

"octodecimo." Wiktionary, via Micwyn, micwyn.com/word/octodecimo. Accessed 6 Nov. 2026.

APA

octodecimo. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/octodecimo

Chicago

"octodecimo." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/octodecimo.

BibTeX

@misc{octodecimo_2026,
  title = {octodecimo},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/octodecimo},
  urldate = {2026-11-06}
}