Look up MMO in Wiktionary, the free dictionary.

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 electrodes

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

See also

• Military Merit Order (disambiguation)

This disambiguation page lists articles associated with the title MMO.
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