PSD

From Wikipedia, the free encyclopedia

PSD can be an abbreviation for:

[edit] Politics

• Social Democratic Party, a political party of Portugal.
• Social Democratic Party, a political party of Romania.
• Socialist Destourian Party, the old name (to 1988) of the ruling party in Tunisia, currently called Constitutional Democratic Rally.

[edit] Sciences

• Particle Size Distribution, in crystallography.
• Position sensitive device or position sensitive detector, a device that measures the one or two-dimensional position of a lightspot.
• Positive-semidefiniteness as it relates to matrices.
• Power spectral density is the power of a signal per some unit of measurement such as temporal or spatial frequency used in signal analysis.
• Prevention of significant deterioration, an American environmental program created under the Clean Air Act designed to maintain existing air quality in areas already meeting EPA National Ambient Air Quality Standards.
• Postsynaptic density, a specialization of the cytoskeleton at the synaptic junction.

[edit] Computers

• .psd, the default file extension of the proprietary file format of Adobe System's Photoshop program.
• A portable or personal storage device, small hard drives designed to copy digital photographs from your camera.
• Programmable system device, an integrated circuit manufactured by ST Microelectronics and including Flash-ROM, RAM, and logic functions on a single chip.
• A Program Structure Diagram, also known as a Nassi-Shneiderman diagram.

[edit] Medicine

• Post-traumatic stress disorder, though "PTSD" is more common.

[edit] Business

• Product Support & Development,
• Product Support Department

[edit] Others

• Platform screen doors, platform-edge doors used on railway platforms.
• Punch Sport Drink, a drink served to Midshipmen at the United States Naval Academy
• Pennsylvania Sumerian Dictionary, University of Pennsylvania's project to create an online dictionary of the first language.
• Psychiatric service dog, a specific type of assistance dog that helps people with psychiatric disabilities.
• Power Split Device, part of the Hybrid Synergy Drive on a Toyota Prius.