Science, medicine, and technology

• least publishable unit
  Least publishable unit
  In academic publishing, the least publishable unit , also smallest publishable unit or minimum publishable unit , colloquially "publon" - the smallest measurable quantum of publication, is the minimum amount of information that can generate a publication in a peer-reviewed journal...
  
  , or minimum publishable unit, the smallest piece of a scientist's results that can be made into an academic paper
• medical grade polyurethane
  Polyurethane
  A polyurethane is any polymer composed of a chain of organic units joined by carbamate links. Polyurethane polymers are formed through step-growth polymerization, by reacting a monomer with another monomer in the presence of a catalyst.Polyurethanes are...
  
  , an artificial rubber like substance used in medicine
• microprocessor
  Microprocessor
  A microprocessor incorporates the functions of a computer's central processing unit on a single integrated circuit, or at most a few integrated circuits. It is a multipurpose, programmable device that accepts digital data as input, processes it according to instructions stored in its memory, and...
  
   unit, also known as a central processing unit, but the more popular term when referring to digital signal processors
• MPU-401
  MPU-401
  The MPU-401, where MPU stands for MIDI Processing Unit, was an important but now obsolete interface for connecting MIDI-equipped electronic music hardware to Personal Computers...
  
  , an obsolete standard for MIDI interfaces for personal computers
• MPU (Mid Page Unit) or medium rectangle is a web banner
  Web banner
  A web banner or banner ad is a form of advertising on the World Wide Web delivered by an ad server. This form of online advertising entails embedding an advertisement into a web page. It is intended to attract traffic to a website by linking to the website of the advertiser...
  
   (advertisement) size (w) 300 x (h) 250 (in pixels). See Standard ad size
  Standard ad size
  The Universal Ad Package is a set of four ad sizes that all compliant member publishers have agreed to support for Internet advertising. This standard is published by the Interactive Advertising Bureau.* 300 x 250 -...
  
  
• multi-core processing unit, a processing system composed of two or more independent cores

Other

• MPU, the International Air Transport Association airport code for Mapua, Papua New Guinea