PSD

PSD may refer to:

Contents 1 Sciences 2 Computers 3 Medicine 4 Politics 5 Finance 6 Travel 7 People 8 Others

Sciences

• Proportional/Sum/Derivative, a version of the common discrete controller Proportional/Integral/Derivative
• Particle size distribution
• Phase sensitive detector
• Phase space density, number of particles (atoms) populating the same state. Important in Bose Einstein Condensation
• Position sensitive device or position sensitive detector, a device that measures the one- or two-dimensional position of a light spot
• Positive-semi-definiteness as it relates to matrices
• Postsynaptic density, a specialization of the cytoskeleton at the synaptic junction
• Power spectral density, the power of a signal per some unit of measurement such as temporal or spatial frequency used in signal analysis

Computers

• .psd (Photoshop document), the default file extension of the proprietary file format of Adobe System's Photoshop program.
• A portable or personal storage device, small hard disks designed to copy digital photographs from a camera
• Programmable system device, an integrated circuit manufactured by ST Microelectronics and including Flash-ROM, RAM, and logic functions on a single chip
• Program structure diagram, also known as a Nassi–Shneiderman diagram
• Pose Space Deformation, a computer character animation technique
• Professional Scrum Developer, a certification for Scrum (development)

Medicine

• Post-traumatic stress disorder (more commonly abbreviated PTSD)

Politics

• Civil Movement "People's Self-Defense", a political movement in Ukraine and part of the Our Ukraine–People's Self-Defense Bloc electoral alliance
• Party of Socialists and Democrats, a political party of San Marino
• Social Democratic Party (Angola), a political party of Angola
• Social Democratic Party (Benin), a political party of Benin
• Social Democratic Party (Brazil), a defunct political party of Brazil
• Social Democratic Party (El Salvador), a political party of El Salvador
• Social Democratic Party (Mexico), a political party of Mexico
• Social Democratic Party (Moldova), a political party of Moldova
• Social Democratic Party (Nicaragua), a political party of Nicaragua
• Social Democratic Party (Portugal), a political party of Portugal
• Social Democratic Party (Romania), a political party of Romania
• Social Democratic Party (Spain), a political party of Spain
• Socialist Destourian Party, the old name (to 1988) of the ruling party in Tunisia, currently called Constitutional Democratic Rally

Finance

• Payment Services Directive, an initiative to regulate payment services and payment service providers in the European Union
• Private Sector Development, a strategy for promoting economic growth and reducing poverty in developing countries

Travel

• IATA code for Port Said Airport, Port Said, Egypt

People

• PSD (DJ), an American club disc jockey residing on the East Coast, also known as p-spEEd
• PSD (rapper), a Californian rapper and hip-hop producer.

Others

• Personal Security Detail or Protective Services Detail Military, or private security contractor unit tasked to protect a client
• Personal Security Detachment, U.S. Army unit assigned to protect VIPs
• Propulsion System Demonstrator
• Pesticides Safety Directorate, UK
• Philippine School Doha, a Filipino school in Doha, Qatar
• Plains Indian Sign Language, an endangered native sign language of North America
• Platform Screen Doors, doors used on the edges of underground railway platforms
• Plastic Surgery Disasters, a 1982 album by the Dead Kennedys
• Power Split Device, part of the Hybrid Synergy Drive on a Toyota Prius
• Program Service Data, also known as program-associated data, usually data sent along with an HD radio program
• Psychiatric Service Dog, a specific type of assistance dog that helps people with psychiatric disabilities
• Punch Sport Drink, a drink served to midshipmen at the United States Naval Academy
• Ford Power Stroke engine, the Ford turbo diesel engine available in the F250 / F350 line as well as other trucks
• Pennridge School District, a school district in Pennsylvania, near Philadelphia
• Prevention of Significant Deterioration of Air Quality
• Professional School Degree
• Pre-school depression

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