Upstream SlopeThe part of the dam which is in contact with the reservoir water. On earthen dams, this slope must be protected from the erosive action of waves by rock…
UPTSee Universal Personal Telecommunications service.
UPT access codeIn universal personal telecommunications service, the code that UPT users may need to dial, when using some terminals and networks, to enter the UPT…
UPT access number (UPTAN)A number dialed by a UPT user to contact the service provider when using certain terminals and networks.
UPT databaseIn universal personal telecommunications service, a repository for information, such as a service profile, that is related to a set of UPT customers and…
UPT environmentIn universal personal telecommunications service, the environment within which the UPT service facilities are offered, consisting of combinations of…
UPT indicatorIn universal personal telecommunications service, that portion (or portions) of the UPT number that identifies a call as a UPT call.
UPT numberIn universal personal telecommunications service, the number that uniquely identifies a UPT user and that is used to place a call to, or to forward a call…
UPT routing addressIn universal personal telecommunications service, the number used by the network to direct a call according to the user's UPT service profile.
UPT service profileIn universal personal telecommunications service, a record that contains all information related to a UPT user, which information is required to provide…
UPT service profile managementIn universal personal telecommunications service, authorized access to and manipulation of the UPT service profile.
UPT subscriberIn universal personal telecommunications service, a person who (or entity that) obtains a UPT service from a UPT service provider on behalf of one or more…
UPT userIn universal personal telecommunications service, a person who (or entity that) has access to universal personal telecommunications (UPT) services and who…
UPT user groupA specific set of universal personal telecommunications service users.
UptickAn uptick is the smallest possible incremental increase in a security's price, which, for stocks, is one cent.
uptimeThe time during which a functional unit is fully operational.
UpwarpA broad anticline with gently sloping limbs formed as a result of differential uplift.
UpwellingIn ocean dynamics, the upward motion of sub-surface water toward the surface of the ocean. This is often a source of cold, nutrient-rich water.
upwelling longwave irradianceThe rate at which radiant energy, at a wavelength longer than approximately 4 µm, is being emitted upwards into a radiation field and transferred across…
upwelling shortwave radianceThe rate at which radiant energy, at a wavelength between 0.4 and 4 µm, is being emitted upwards into a radiation field and transferred across a surface…
UpzoneTo change the zoning of a tract or parcel of land from a lesser to greater intensity of usage.
Urban and Small Stream Flood AdvisoryThis advisory alerts the public to flooding which is generally only an inconvenience (not life-threatening) to those living in the affected area.
Urban and Small Stream FloodingFlooding of small streams, streets, and low-lying areas, such as railroad underpasses and urban storm drains.
Urban areaPredominantly cities, towns or developed areas where the population is significant.
Urban Flash Flood GuidanceA specific type of flash flood guidance which estimates the average amount of rain needed over an urban area during a specified period of time to initiate…
Urban FloodingFlooding of streets, underpasses, low lying areas, or storm drains. This type of flooding is mainly an inconvenience and is generally not life threatening.
Urban Growth BoundaryA line drawn around a city that prohibits development outside that boundary. Designed to slow or prevent sprawl, UGBs are designed to accommodate growth…
Urban Heat IslandThe increased air temperatures in urban areas in contrast to cooler surrounding rural areas.
UrbanizationTo become urban in nature or character; residential, commercial, and industrial development.
urea(yoo-REE-uh) A substance formed by the breakdown of protein in the liver. The kidneys filter urea out of the blood and into the urine.
urea nitrogen(yoo-REE-uh NY-truh-jen) Nitrogen in the blood that comes from urea (a substance formed by the breakdown of protein in the liver).
urea/lactic acid-based cream(yoo-REE-uh LAK-tik A-sid â¦) A substance being studied in the treatment of hand-foot syndrome (a condition caused by chemotherapy and marked by…
ureter(YER-eh-ter) The tube that carries urine from the kidney to the bladder.
ureteronephrectomy(YER-eh-ter-oh-neh-FREK-toh-mee) Surgery to remove a kidney and its ureter. Also called nephroureterectomy.
ureteroscopy(YER-eh-ter-OS-koh-pee) Examination of the inside of the kidney and ureter, using a ureteroscope.
urethra(yoo-REE-thruh) The tube through which urine leaves the body. It empties urine from the bladder.
urethral cancer(yoo-REE-thrul KAN-ser) A rare cancer that forms in tissues of the urethra (the tube through which urine empties the bladder and leaves the body).
Urgent CareCare for an illness, injury or condition serious enough that a reasonable person would seek care right away, but not so severe as to require emergency…
URIA character string used to identify a resource (such as a file) from anywhere on the Internet by type and location.
URI (Uniform Resource Indicator)A Uniform Resource Identifier (URI), is a compact string of characters used to identify or name a resource.
URI (Universal Resource Identifier)URLs are the most familiar type of URI; a URI defines or specifies an entity, without necessarily by naming its location on the Web.
uric acid(YUR-ik A-sid) A waste product left over from normal chemical processes in the body and found in the urine and blood.
uridineThe (ribo)nucleoside resulting from the combination of the base uracil (U) and the sugar D-ribose. See: uridylic acid, uridine triphosphate.
uridylic acidSynonym for uridine 5'-monophosphate (abbreviation: UMP), a (ribo)nucleotide containing the base uracil. See: uridine triphosphate.
urinalysis(YOOR-in-AL-ih-siss) A test that determines the content of the urine.
urinary(YOOR-in-air-ee) Having to do with urine or the organs of the body that produce and get rid of urine.
Urinary catheterA flexible tube that is inserted through the urethra and into the bladder to drain urine from the bladder into a bag or container.
urinary diversion(YUR-ih-NAYR-ee dih-VUR-zhun) A surgical procedure to make a new way for urine to leave the body.
urinary incontinence(YOOR-in-air-ee in-KAHN-tih-nens) Inability to hold urine in the bladder.
urinary tract(YOOR-in-air-ee) The organs of the body that produce and discharge urine. These include the kidneys, ureters, bladder, and urethra.
Urinary Tract Infection AdmissionsThe urinary tract includes the kidneys, bladder and the tubes that help carry urine through the urinary tract and out of the body.
urine(YOOR-in) Fluid containing water and waste products. Urine is made by the kidneys, stored in the bladder, and leaves the body through the urethra.
urine cytology(YOOR-in sy-TAH-loh-jee) Tests performed on cells in urine to detect disease.
Urine Tests(Urinalysis.) Analysis of the fluid and dissolved substances excreted by the kidney.
URIPUniversity Research Initiative Support Program.
URL (Uniform Resource Locator)The Internet address for a document, file, or other resource. It describes the protocol required to access the resource, the host where it can be found…
URL (Uniform Resource Locators)the addressing system used in the World Wide Web and other Internet resources. The URL contains information about the method of access, the server to be…
URL (Universal Resource Locator)A Universal Resource Locator is the address that translates to a TCP/IP address in order to access resources in the Internet.
URL pathThe part of a URL passed by an HTTP request to invoke a servlet. A URL path consists of the context path + servlet path + path info, where
URL RewriteA technique used to help make URLs more unique and descriptive to help facilitate better sitewide indexing by major search engines.
US savings bondThe US government issues two types of savings bonds: Series EE and Series I. You buy electronic Series EE bonds through a Treasury Direct account for face…
US Treasury bondUS Treasury bonds are long-term government debt securities, typically issued with 30-year terms.