User sessionan instance of an Internet user accessing your web site for a length of time, then leaving. During a user session any number of pages may be accessed.
user taxA tax that is paid directly by the consumer of a good, product, or service.
User-Added MetadataData or work product created by a user while reviewing a document, including annotations and subjective coding information.
user-network interface (UNI)The point of demarcation between a common carrier's facilities and customer's installation, which demarcation establishes both the technical interface and…
user-provided number (UPN)An ISDN number, supplied completely or partially by the calling user or the redirecting user, that is associated with the calling user or the redirecting…
UsersA directory Object such as University staff, students, guests, and faculty.
USEUCOMUnited States European Command, Stuttgart- Vaihingen , Germany.
USGS Digital Elevation Model (DEM)A digital elevation model produced by the Survey Branch of the United States Department of the Interior, consisting of a regular array of elevations…
USTRUnited States Trade Representative -- see International Intellectual Property for more
USTRANSCOMSee United States Transportation Command.
Usual and Customary Charges (UCC)The amount that your insurance company determines is the normal payment range for a specific medical procedure performed within a given geographic area.
Usual, Customary and Reasonable (UCR)The amount paid for a medical service in a geographic area based on what providers in the area usually charge for the same or similar medical service.
Usual, Customary and Reasonable (UCR) ChargesThe cost associated with a health care service that is consistent with the going rate for identical or similar services within a particular geographic…
Usual, Customary and Reasonable charge (UCR)The cost associated with a health care service that is consistent with the going rate for identical or similar services within a particular geographic…
Usual, Customary, Reasonable (UCR)The amount paid for a medical service in a geographic area based on what providers in the area usually charge for the same or similar medical service.
UsuryCharging an illegally high interest rate on a loan.
Usury RatesThe maximum rate of interest lenders may charge borrowers. The usury rate is generally set by State law.
uterine cancer(YOO-teh-rin KAN-ser) Cancer that forms in tissues of the uterus (small, hollow, pear-shaped organ in a woman's pelvis in which a baby grows).
uterine sarcoma(YOO-teh-rin sar-KOH-muh) A rare type of uterine cancer that forms in muscle or other tissues of the uterus (the small, hollow, pear-shaped organ in a…
uterus(YOO-ter-us) The small, hollow, pear-shaped organ in a woman's pelvis. This is the organ in which a baby grows. Also called womb.
UTFUniversal Character Set (UCS) Transformation Format. A format for representing multibyte characters that is compatible with programs and file systems that…
Utility and CommunicationEnergy, water and waste systems, and communications infrastructure and services.
utility computingWhile utility computing often requires a cloud-like infrastructure, its focus is on the business model on which providing the computing services are based.
utility costsPeriodic housing costs for water, electricity, natural gas, heating oil, etc.
Utility Data CenterAn infrastructure solution proposed by HP that allows virtualization of computing resources for the data center.
Utility ModelA type of patent available in some countries that requires less inventiveness than necessary to obtain a patent.
Utility Patentmay be granted to anyone who invents or discovers any new, useful, and nonobvious process, machine, article of manufacture, or composition of matter, or…
utility patent applicationprotect useful processes, machines, articles of manufacture, and compositions of matter. -- see also application (patent)
utility programA computer program that is in general support of the operations and processes of a computer.
Utility scale facilitiesFacilities that generate large amounts of electricity that is delivered to many users through transmission and distribution systems.
Utilization LevelThe utilization level in a given geographic area (NPA or rate center) is calculated by dividing all assigned numbers (numerator) by total numbering…
UTTMDSUpper Tier Theater Missile Defense System. See THAAD System.
uudecodeA standardized, MIME-compliant method of decoding uuencoded e-mail messages by decoding binary data that was conveyed as a character string over a…
uuencode1. A standardized, MIME-compliant method of encoding e-mail and other electronically transferred messages to provide a minimum level of security through…
UV Electro- OpticsTechnologies/techniques employed by optical sensors in the wavelength spectrum shorter than visible (e.g., less than 4,000 A).
UV IndexUltraviolet Index- This index provides important information to help you plan your outdoor activities in ways that prevent overexposure to the sun's rays.
UV radiationInvisible rays that are part of the energy that comes from the sun. UV radiation also comes from sun lamps and tanning beds.
UVA radiationA type of ultraviolet (UV) radiation. UV rays are invisible rays that are part of the energy that comes from the sun.
UVB radiationA type of ultraviolet (UV) radiation. UV rays are invisible rays that are part of the energy that comes from the sun.
uvea(YOO-vee-uh) The middle layer of the wall of the eye. The uvea has 3 main parts: (1) the choroid (the tissue layer filled with blood vessels); (2) the…
uveal tract(YOO-vee-ul trakt) The middle layer of the wall of the eye. The uveal tract has 3 main parts: (1) the choroid (the tissue layer filled with blood…
UVMUpward Vertical Motion (also known as Upward Vertical Velocity)
UWBAbbreviation for ultrawideband. 1. Referring to any radio or wireless device where the occupied bandwidth is greater than 25% of the center frequency or…