[1] Manipulation Detection Code

[2] Metropolitan District Commission (Mass State Agency)

[3] Maintenance Data Collection (->"IEEE Standard Dictionary")

[4] Maintenance Dependency Chart (->"IEEE Standard Dictionary")

[5] Maximum Dependable Capacity (->"IEEE Standard Dictionary")

[6] Marker Distributor Control

[7] Mcdonnell Douglas Corporation

[8] Meridian Digital Centrex

[9] Main Display Console (->"NASA Acronym List")

[10] Mission Director Center (->"NASA Acronym List")

[11] Menado, Indonesia - internationale Fughafen-Kennung