Glossary · Nouns · H
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TermTypeDefinitionClassificationsUpdated
High-Impact SystemnounMWEAn information system in which at least one security objective (i.e., confidentiality, integrity, or availability) is assigned a FIPS 199 potential impact value of high.SystemRegulatedCUI
High-Level FormattingnounMWE(computer science) the format for the root directory and the file allocation tables and other basic configurationsverified
High-Level LanguagenounMWEa problem-oriented language requiring little knowledge of the computer on which it will be runverified
High-Level Radioactive WastenounMWEradioactive waste that left in a nuclear reactor after the nuclear fuel has been consumedverified
High-Low-Jacknouncard games in which points are won for taking the high or low or jack or gameverified
High-Pass FilternounMWEa filter that passes frequencies above a certain value and attenuates frequencies below that valueverified
high-risk individualnounMWEA classification applied to a person — typically a user, employee, contractor, or other organizational insider — for whom credible evidence indicates a significant likelihood of causing harm to organizational systems, data, assets, or operations, either through malicious intent or as a vector adversaries can exploit. The category is operationalized in access-control and incident-response policy: once someone is designated high-risk, controls such as time-bounded account disablement, heightened monitoring, and expedited notification of relevant personnel are triggered. Across the field the designation is context-driven and organization-defined, covering a spectrum from the disgruntled insider with demonstrated intent to the compromised account holder through whom external threat actors act.IdentityRestrictedPII
Highballnouna mixed drink made of alcoholic liquor mixed with water or a carbonated beverage and served in a tall glassverified
Highbush CranberrynounMWEdeciduous North American shrub or small tree having three-lobed leaves and red berriesverified
Higher Cognitive ProcessnounMWEcognitive processes that presuppose the availability of knowledge and put it to useverified
Higher CriticismnounMWEthe scientific study of biblical writings to determine their origin and meaningverified
Highest Common FactornounMWEthe largest integer that divides without remainder into a set of integersverified
Highjackernounsomeone who uses force to take over a vehicle, especially an airplane, in order to reach an alternative destinationverified
Highjackingnounrobbery of a traveller or vehicle in transit or seizing control of a vehicle by the use of forceverified
Highly Active Antiretroviral TherapynounMWEa combination of protease inhibitors taken with reverse transcriptase inhibitorsverified
Highway EngineernounMWEa civil engineer who specializes in the design and construction of roads and highwaysverified
Hijack AttacknounMWEA form of active wiretapping in which the attacker seizes control of a previously established communication association.Threat
Hijackernounsomeone who uses force to take over a vehicle (especially an airplane) in order to reach an alternative destinationverified
HijackingnounThe use of an authenticated user's communication session to communicate with system components.Threat
Hilbert SpacenounMWEa metric space that is linear and complete and (usually) infinite-dimensionalverified
Hillbilly MusicnounMWEcountry music originating in mountainous regions of southern United Statesverified
Hilumnoun(anatomy) a depression or fissure where vessels or nerves or ducts enter a bodily organverified
Hilusnoun(anatomy) a depression or fissure where vessels or nerves or ducts enter a bodily organverified
Hind LimbnounMWEa posterior appendage such as a leg or the homologous structure in other animalsverified
Hinge JointnounMWEa freely moving joint in which the bones are so articulated as to allow extensive movement in one planeverified
Hip BathnounMWEa bathtub in which your buttocks and hips are immersed as if you were sitting in a chair and you bathe in a sitting positionverified
Hip SocketnounMWEthe socket part of the ball-and-socket joint between the head of the femur and the innominate boneverified
Hip-Hopnoungenre of African-American music of the 1980s and 1990s in which rhyming lyrics are chanted to a musical accompanimentverified
Hippeastrumnounamaryllis of tropical America often cultivated as a houseplant for its showy white to red flowersverified