What does MUI stand for?

Fort Indiantown Gap (Annville), PA - Location identifier - FAA (FAAL)

Machine & Marine Inc., Vineyard Haven, MA - Manufacturer code for watercraft hull identification number (USCG)

Machine Utilization Index - Computer science

Magic User Interface (TLAA)

Mashhad University - Iran - Seismograph station code, US Geological Survey (SEIS)

Mass Unbalance Input - Computer science

Metals USA - NYSE symbol (SPSG)

Mode-Independent Unnumbered Information

Monsoonal Upwelling Index - Paleoceanography

Movement for the Unity of the Left - Ecuador - Political party (PPW)

Multilingual User Interface (XSAL)

Multimedia User Interface (GART)

Musi - Language code (ETLW)

Trans Air - FAA designator (FAAC)