MO

Multiple Entries:
  MO    Mo    mo    -mo    mo.    molybdenum  

Concise Oxford English Dictionary © 2008 Oxford University Press:
MO/emˈəʊ/

▶abbreviation

• 1 Computing (of a disk or disk drive) magneto-optical.

• 2 Medical Officer.

• 3 Missouri (in official postal use).

• 4 modus operandi.

• 5 money order.

Concise Oxford English Dictionary © 2008 Oxford University Press:
Mo

▶symbol the chemical element molybdenum.

Concise Oxford English Dictionary © 2008 Oxford University Press:
mo/məʊ/

▶noun informal, chiefly Brit. a moment.

Concise Oxford English Dictionary © 2008 Oxford University Press:
-mo /məʊ/

▶suffix forming nouns denoting a book size by the number of leaves into which a sheet of paper has been folded: twelvemo.

– origin from the final syllable of L. ordinal numbers such as duodecimo (masc. ablative sing.).

Concise Oxford English Dictionary © 2008 Oxford University Press:
mo.

▶abbreviation N. Amer. month.

Concise Oxford English Dictionary © 2008 Oxford University Press:
molybdenum /məˈlɪbdənəm/

▶noun the chemical element of atomic number 42, a brittle silver-grey metal. (Symbol: Mo)

– origin C19: mod. L., earlier molybdena (orig. denoting a salt of lead), from Gk molubdaina ‘plummet’, from molubdos ‘lead’.