-mo A suffix added to the names of certain numerals or to the numerals themselves, to indicate the number of leaves made by folding a sheet of paper; as, sixteenmo or 16mo; eighteenmo or 18mo. It is taken from the Latin forms similarly used; as, duodecimo, sextodecimo, etc. A small circle, placed after the number and near its top, is often used for -mo; as, 16°, 18°, etc.
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Mo
n 1: a polyvalent metallic element that resembles chromium and
tungsten in its properties; used to strengthen and
harden steel [syn: molybdenum, atomic number 42]
2: a midwestern state in central United States; a border state
during the American Civil War, Missouri was admitted to
the Confederacy without actually seceding from the Union
[syn: Missouri, Show Me State]