OCD (Obsessive Compulsive Disorder)

A type of psychiatric anxiety disorder characterized by a

person’s recurrent, unwanted thoughts (obsessions) and related ritualistic and repetitive behaviors (compul-sions) such as counting, checking, cleaning, or handwashing in an attempt to neutralize the obsessions.The rituals, however, provide only temporary relief and, therefore, must be repeated, again and again. By the

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• photophone
• PHS (Personal Handyphone System)
• PHY (PHYsical Layer)
• physical
• Physical Layer (PHY)
• Physical Medium (PM)
• physical reach
• physical topology
• Physical Unit (PU)
• physics
• picker
• picocell
• piconet
• PID (Pager Identification Number)
• piezoelectric effect
• ping
• PIN (Positive Intrinsic Negative)
• PIN (Positive Intrinsic Negative)
• PIN (Positive Intrinsic Negative)
• pipe
• PISN (Private Integrated Services Network)
• PISO (parallel-in, serial-out)
• pixel ( pics element)
• pizza box
• PKI (Public Key Infrastructure)