title: MMO
text: # MMO
  
  MMO may refer to:
  
  ## Entertainment
  
  * Massively multiplayer online game, a video game that can be played by many people simultaneously
  * Music Minus One, a record company in Westchester, New York
  
  ## Science and technology
  
  * Methane monooxygenase, an enzyme
  * Maximum operating Mach number
  * Mercury Magnetospheric Orbiter, a component of the Mercury mapper BepiColombo
  * Mini-Mag Orion, a proposed type of spacecraft propulsion
  * Mixed metal oxide, a class of materials often used in elctrodes
  
  ## Other
  
  * Means, motive, and opportunity, the "indicators of suspicion"
  * Minimum municipal obligation, minimum contribution to a pension plan
  * Maio Airport, in Cape Verde, IATA code
  * Melton Mowbray railway station, England (National Rail station code MMO)
  * Marine Management Organisation, UK government body
  * Marine mammal observer, a professional in environmental consulting
  