Submitted by György Chityil ... on Fri, 01/19/2018 - 18:23 Hierarchy: InitialismDescription: {{physics|engineering|space science|rocketry}} MagnetoplasmadynamicsNgram: MPDNgram Text: MPDSource: WiktionaryIssue: 0Wiktionary tag: physicsengineeringspace sciencerocketryNgram Count: 1