Definitions beginning with U

urea/lactic acid-based cream - permalink - collapse

All > Medicine > Cancer

(yoo-REE-uh LAK-tik A-sid Ã¢ÂÂ¦) A substance being studied in the treatment of hand-foot syndrome (a condition caused by chemotherapy and marked by tingling, numbness, and red, peeling skin). Urea/lactic acid-based cream is a moisturizer that may help break down the hardened protein in dry, scaly skin and relieve these symptoms.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: AHA, alkalinization, alpha hydroxyl acid, fruit acid, glycolic acid, lactic acid, sialic acid, urea/lactic acid-based cream

urea nitrogen - permalink - collapse

All > Medicine > Cancer

(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). The kidneys filter urea out of the blood and into the urine. A high level of urea nitrogen in the blood may be a sign of a kidney problem. Also called blood urea nitrogen and BUN.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: 5-hydroxyindoleacetic acid, blood urea nitrogen, BUN, calcitriol, creatinine, excrete, Kidney, renal tubular acidosis

U reference point - permalink - collapse

All > Technology > Telecommunications

The conceptual reference point at the network side of the network termination 1 (NT1) in a particular ISDN access arrangement. [T1.615-1992] [T1.105-1988]
ATIS - Cite This Source - This Definition
Browse Related Terms: IA, IB, network termination 1 (NT1), nodal clock, S reference point, T reference point

(YER-eh-ter-OS-koh-pee) Examination of the inside of the kidney and ureter, using a ureteroscope. A ureteroscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue to be checked under a microscope for signs of disease. The ureteroscope is passed through the urethra into the bladder, ureter, and renal pelvis (part of the kidney that collects, holds, and drains urine).
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: bronchoscopy, Colonoscopy, cystoscopy, endoscopy, esophagoscopy, gastroscopy, laparoscopic-assisted colectomy, laparoscopic prostatectomy, laparoscopy, mediastinoscopy, nasoscopy, proctoscopy, proctosigmoidoscopy, rhinoscopy, sigmoidoscopy, thoracoscopy, upper endoscopy

urethra - permalink - collapse

All > Medicine > Cancer

(yoo-REE-thruh) The tube through which urine leaves the body. It empties urine from the bladder.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: hypospadias, penis, perineum, scrotum, urinalysis, urinary, urinary tract, urine

urethral cancer - permalink - collapse

All > Medicine > 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). Types of urethral cancer include transitional cell carcinoma (cancer that begins in cells that can change shape and stretch without breaking apart), squamous cell carcinoma (cancer that begins in flat cells lining the urethra), and adenocarcinoma (cancer that begins in cells that make and release mucus and other fluids).
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: bladder cancer, esophageal cancer, hypopharyngeal cancer, hypopharynx, laryngeal, laryngeal cancer, nasopharyngeal cancer, oropharyngeal cancer, penile cancer, pharyngeal cancer, squamous cell, throat cancer, vaginal cancer

URI - permalink - collapse

All > Technology > Operating System > Microsoft Windows > Microsoft Windows Server

A character string used to identify a resource (such as a file) from anywhere on the Internet by type and location. The set of Uniform Resource Identifiers includes both Uniform Resource Names (URNs) and Uniform Resource Locators (URLs).
Microsoft - Cite This Source - This Definition
Browse Related Terms: globally unique identifier, Globally Unique Identifier (GUID), GUID, Uniform Resource Identifier

All > Technology > Programming > Java

Uniform Resource Identifier. A compact string of characters for identifying an abstract or physical resource. A URI is either a URL or a URN. URLs and URNs are concrete entities that actually exist; A URI is an abstract superclass.
Sun Microsystems - Cite This Source - This Definition
Uniform resource identifier. A globally unique identifier for an abstract or physical resource. A URL is a kind of URI that specifies the retrieval protocol (http or https for Web applications) and physical location of a resource (host name and host-relative path). A URN is another type of URI.

Sun Microsystems - Cite This Source - This Definition
Browse Related Terms: Bookmark, PRC (Palm Resource Code), protocol, resource, URL, URL (Uniform Resource Locator), URN, Web resource, Web resource collection

All > Technology > Search > Enterprise Search

Internet space is inhabited by many points of content. A URI (Uniform Resource Identifier) is the way you identify any of those points of content, whether it be a page of text, a video or sound clip, a still or animated image, or a program. The most common form of URI is the Web page address, which is a particular form or subset of URI called a Uniform Resource Locator (URL). A URI typically describes:
- The mechanism used to access the resource
- The specific computer that the resource is housed in
- The specific name of the resource (a file name) on the computer
FAST - Cite This Source - This Definition
Browse Related Terms: Footprint, LDAP (Lightweight Directory Access Protocol), URI (Uniform Resource Identifier), URL, URL (Uniform Resource Locator), URN (Universal Resource Name)

uric acid - permalink - collapse

All > Medicine > Cancer

(YUR-ik A-sid) A waste product left over from normal chemical processes in the body and found in the urine and blood. Abnormal buildup of uric acid in the body may cause a condition called gout. Increased levels of uric acid in the blood and urine can be a side effect of chemotherapy or radiation therapy.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: amifostine, carbogen, efaproxiral, etanidazole, hyperbaric oxygen, lisofylline, niacinamide, nicotinamide, pentosan polysulfate, RSR13, tirapazamine

uridine - permalink - collapse

All > Science > Biotechnology and Genetics > Food Biotechnology

The (ribo)nucleoside resulting from the combination of the base uracil (U) and the sugar D-ribose. See: uridylic acid, uridine triphosphate.
UN Food and Agriculture Organization - Cite This Source - This Definition
Browse Related Terms: adenylic acid, CMP, cytidine, cytidylic acid, deoxycytidine, guanosine, guanylic acid, thymidylic acid, TMP, UMP, uridylic acid

uridine triphosphate (uridine 5'-triphosphate) - permalink - collapse

All > Science > Biotechnology and Genetics > Food Biotechnology

(Abbreviation: UTP). Required for RNA synthesis since it is a direct precursor molecule. See: uridylic acid.
UN Food and Agriculture Organization - Cite This Source - This Definition
Browse Related Terms: CTP, cytidine triphosphate (cytidine 5'-triphosphate), dCTP, TTP, UTP

uridylic acid - permalink - collapse

All > Science > Biotechnology and Genetics > Food Biotechnology

Synonym for uridine 5'-monophosphate (abbreviation: UMP), a (ribo)nucleotide containing the base uracil. See: uridine triphosphate.
UN Food and Agriculture Organization - Cite This Source - This Definition
Browse Related Terms: adenylic acid, CMP, cytidine, cytidylic acid, deoxycytidine, guanosine, guanylic acid, thymidylic acid, TMP, UMP, uridine

urinalysis - permalink - collapse

All > Medicine > Cancer

(YOOR-in-AL-ih-siss) A test that determines the content of the urine.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: hypospadias, penis, perineum, scrotum, urethra, urinary, urinary tract, urine

urinary - permalink - collapse

All > Medicine > Cancer

(YOOR-in-air-ee) Having to do with urine or the organs of the body that produce and get rid of urine.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: hypospadias, penis, perineum, scrotum, urethra, urinalysis, urinary tract, urine

urinary diversion - permalink - collapse

All > Medicine > Cancer

(YUR-ih-NAYR-ee dih-VUR-zhun) A surgical procedure to make a new way for urine to leave the body. It may involve redirecting urine into the colon, using catheters to drain the bladder, or making an opening in the abdomen and collecting urine in a bag outside the body.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: collecting duct, hydroureter, nephrostomy, renal collecting tubule, renal glomerulus, renal pelvis, ureter

urinary incontinence - permalink - collapse

All > Medicine > Cancer

(YOOR-in-air-ee in-KAHN-tih-nens) Inability to hold urine in the bladder.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: fecal incontinence, incontinence

urinary tract - permalink - collapse

All > Medicine > Cancer

(YOOR-in-air-ee) The organs of the body that produce and discharge urine. These include the kidneys, ureters, bladder, and urethra.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: hypospadias, penis, perineum, scrotum, urethra, urinalysis, urinary, urine

urine - permalink - collapse

All > Medicine > Cancer

(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.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: hypospadias, penis, perineum, scrotum, urethra, urinalysis, urinary, urinary tract