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[ey-teen-moh] /ˈeɪˈtin moʊ/ Bookbinding.
noun, plural eighteenmos, adjective
Origin of eighteenmo Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for eighteenmo
Historical Examples
  • Other sizes occasionally used are called “sixteenmo” or “sextodecimo,” “eighteenmo” or “octodecimo,” etc.

    The Story of Books Gertrude Burford Rawlings
British Dictionary definitions for eighteenmo


noun (pl) -mos
Also called octodecimo. a book size resulting from folding a sheet of paper into 18 leaves or 36 pages Often written 18mo, 18°
a book of this size
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
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