A polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel
  1. molybdenum
  2. moment
  3. minute
  4. second
  5. atomic number 42
  6. bit
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
  1. missouri
  2. show-me-state

Words near M.o. in the Thesaurus