MPL

MPL may refer to:

Astronomy and science

• Magnetic Path Length – the length of the closed magnetic path loop usually inside some inductor or transformer core made of ferromagnetic material.
• Mars Polar Lander
• Max Planck Institute for the Science of Light
• Maximum parcel level – level in atmosphere where convective plume stops after reaching its level of neutral buoyancy
• Monophosphoryl lipid A - a derivative of the lipid A molecule found in the membrane of Gram-negative bacteria
• MPL (gene), that encode the myeloproliferative leukemia protein
• Medial Patellar Luxation (MPL) in the canine
• Multi-photon lithography

Companies

• MPL Communications - (Paul) McCartney Productions Limited, a music publisher
• Manipal Press Limited
• Managing Partners Limited - a multi-disciplined investment company based in London, United Kingdom

Computing

• Mathematical Programming Language - MPL Modeling System
• Messenger Plus! Live - a freeware add-on for Windows Live Messenger
• Mozilla Public License
• Microsoft Public License, an open source license offered by Microsoft as part of its Shared source initiative.
  • Microsoft Permissive License, an earlier name for the Microsoft Public License
• Boost Metaprogramming Library
• MicroProgramming Language[1]. 1971: "The first high level microprogramming language". Syntax similar to PL/I. For vertical machines.
• Midi Programming Language - MPL is a tool to make changes to MIDI files in batch and real time.
• Maruti Programming Language[2], syntax based in the C programming language. Developed for the Maruti [real-time] [operating system].
• .mpl - a file extension to indicate a Maconomy print layout file.
• .mpl - a file extension used to indicate an Embperl module.
• An early possible name for PL/I - [Sammet 1969, p.542].

Economy

• MP_L, in economics is the Marginal product of labor (marginal product of labor)

Firearms

• The Walther MP (Machine Pistol), a series of 9x19mm Parabellum submachine guns produced in Germany by Walther from 1963 to 1987.

Libraries

• Markham Public Library
• Minneapolis Public Library
• Milwaukee Public Library

Literature

• MPL (subtitle format)
• The Patrologia Latina, an enormous collection of early (mostly ecclesiastical) manuscript sources, compiled in the 19th Century by Migne (thus, "Migne: Pat. Lat." = "MPL")

Museums

• Museum Puri Lukisan

Sport

• Messenger Premier League
• Mexican Paintball League
• Mexican Pacific League
• Miyazaki Phoenix League

Transportation

• The Minnesota Prairie Line Railroad, a shortline railroad operating in Central Minnesota
• The IATA airport code for Montpellier-Méditerranée Airport, Montpellier, France
• The Multi-crew pilot license, a new ab initio airline training programme
• Marple railway station, England; National Rail station code MPL.

Politics

• Malian Party of Labour