What does MUO stand for?

Maximal Urinary Osmolality - Medicine (EDAA)

Maximum Undistorted Output

Mountain Home, ID - Location identifier - FAA (FAAL)

Municipal University of Omaha - Later, University of Nebraska at Omaha

Murphy's Law Boats, Anna Maria, FL - Manufacturer code for watercraft hull identification number (USCG)

Myocardiopathy of Unknown Origin - Medicine (EDAA)

Nyong - Language code (ETLW)

Pioneer Interest Shares - Formerly, Mutual of Omaha Interest Shares, Inc. - NYSE symbol (SPSG)

Pioneer Interest Shs - NYSE symbol