PDE

The initials PDE can stand for:

• Page Directory Entry, a list of page table addresses in computer science
• Partial differential equation, a differential equation involving partial derivatives of a function of several variables
• European Democratic Party (EDP), in Spanish, French and Italian
• Phosphodiesterase, a kind of enzyme important in intracellular communication
• "Parade" on street signs
• Photon detection efficiency
• Eclipse (software), plug-in development environment
• Portable Development Environment, File extension for processing source code
• Position Determining Entity, used by cellular phone companies for location determination
• Position Determining Equipment, used by cellular phone companies for location determination
• Present Day English
• Principle of double effect
• Integrated Development Environment, (program development environment) an editing and debugging tool used during software development
• Polydichloric euthimal (sometimes spelled "Polydichloric euthimol"), a fictitious man-made chemical seen in the films Outland, Terminator 2: Judgment Day, and The Relic
• Projectile Development Establishment UK research establishment based at Fort Halstead, and later Aberporth
• Printing Dialog Extensions a user interface for changing printer options in Mac OS X.
• Pug dog encephalitis
• Pulse Detonation Engine a proposed substitute to the traditional jet engine.
• Prescription Drug Event (PDE)
• Power Drive Electronics