Glossary · MWE Terms · U
L1 — paginated flat list. Pick a POS, pick a letter.
TermTypeDefinitionClassificationsUpdated
unsuccessful authentication attemptnounMWEA failed attempt to receive authentication to access a system.verified
Unsupervised LearningnounMWEA learning strategy that consists in observing and analyzing different entities and determining that some of their subsets can be grouped into certain classes, without any correctness test being performed on acquired knowledge through feedback from external knowledge sources. Note 1 to entry: Once a concept is formed, it is given a name that may be used in subsequent learning of other concepts.verified
Until NowadverbMWEused in negative statement to describe a situation that has existed up to this point or up to the present timecandidate
Untrusted ProcessnounMWEProcess that has not been evaluated or examined for correctness and adherence to the security policy. It may include incorrect or malicious code that attempts to circumvent the security mechanisms.verified
Up onadjectiveMWEbeing up to particular standard or level especially in being up to date in knowledgecandidate
Up QuarknounMWEa stable quark with an electric charge of +2/3 and a mass 607 times that of an electronverified
Up to NowadverbMWEused in negative statement to describe a situation that has existed up to this point or up to the present timecandidate
Update a CertificatenounMWEThe act or process by which data items bound in an existing public key certificate, especially authorizations granted to the subject, are changed by issuing a new certificate.verified
Upholstery NeedlenounMWEany of several very heavy and sometimes curved sewing needles used by upholsterersverified
Upland CottonnounMWEnative tropical American plant now cultivated in the United States yielding short-staple cottonverified
Upland White AsternounMWEtufted rigid North American perennial with loose clusters of white flowersverified
Upper BalconynounMWErearmost or uppermost area in the balcony containing the least expensive seatsverified
Upper BoundnounMWE(mathematics) a number equal to or greater than any other number in a given setverified
Upper-Case LetternounMWEone of the large alphabetic characters used as the first letter in writing or printing proper names and sometimes for emphasisverified
Upset PricenounMWE(auction) the minimum price at which a seller of property will entertain bidsverified
Upset StomachnounMWEa disorder of digestive function characterized by discomfort or heartburn or nauseaverified
Upside-Down CakenounMWEbatter baked atop a layer of sweetened fruit then turned upside down so fruit is on topverified
Uranyl NitratenounMWEa yellow salt obtained by the reaction of uranium salts with nitric acidverified
Urban LegendnounMWEa story that appears mysteriously and spreads spontaneously in various forms and is usually falseverified
Urban PlanningnounMWEdetermining and drawing up plans for the future physical arrangement and condition of a communityverified
Urban TyphusnounMWEacute infection caused by rickettsia and transmitted by the bite of an infected fleaverified
Urea-Formaldehyde ResinnounMWEa clear thermosetting resin made from urea and formaldehyde and used in electrical fittings, adhesives, and finishesverified
Urge IncontinencenounMWEurinary incontinence that is generally attributable to involuntary contracts of the bladder muscle resulting in an urgent need to urinate accompanied by a sudden loss of urineverified
Urinary ApparatusnounMWEthe system that includes all organs involved in reproduction and in the formation and voidance of urineverified
Urinary OrgannounMWEan organ that separates waste substances from the blood and discharges themverified
Urinary SystemnounMWEthe system that includes all organs involved in reproduction and in the formation and voidance of urineverified
Uriniferous TubulenounMWEany of the small tubules that are the excretory units of the vertebrate kidneyverified
Urogenital ApparatusnounMWEthe system that includes all organs involved in reproduction and in the formation and voidance of urineverified
Urogenital MedicinenounMWEthe branch of medicine that deals with the diagnosis and treatment of disorders of the urinary tract or urogenital systemverified
Urogenital SystemnounMWEthe system that includes all organs involved in reproduction and in the formation and voidance of urineverified
Ursine DasyurenounMWEsmall ferocious carnivorous marsupial having a mostly black coat and long tailverified
USA Patriot ActnounMWEThe USA PATRIOT Act (Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001 (Public Law Pub.L. 107-56), commonly known as the "Patriot Act", was enacted by Congress to deter and punish terrorist acts in the United States and around the world by enhancing the law enforcement investigatory tools of both domestic law enforcement and foreign intelligence agencies.verified
Usability TestingnounMWErefers to evaluating a product or service by testing it with representative users. Typically, during a test, participants will try to complete typical tasks while observers watch, listen and takes notes. The goal is to identify any usability problems, collect qualitative and quantitative data and determine the participant's satisfaction with the product.verified
usage restrictionnounMWENo definition is given in NIST SP 800-171r3. The term is attested in use at 6 citations in that document; a definition is pending curation.verified