Glossary · Nouns · D
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TermTypeDefinitionClassificationsUpdated
Durum WheatnounMWEwheat with hard dark-colored kernels high in gluten and used for bread and pastaverified
Dusky SalamandernounMWEcommon North American salamander mottled with dull brown or greyish-blackverified
Dust CovernounMWEa large piece of cloth used to cover furniture that is not in use for a long periodverified
Dust DevilnounMWEa miniature whirlwind strong enough to whip dust and leaves and litter into the airverified
Dust SheetnounMWEa large piece of cloth used to cover furniture that is not in use for a long periodverified
Dusty MillernounMWEan old cottage garden plant of southeastern Europe widely cultivated for its attractive white woolly foliage and showy crimson flowersverified
Dutch AuctionnounMWEa method of selling in which the price is reduced until a buyer is foundverified
Dutch ClovernounMWEcreeping European clover having white to pink flowers and bright green leavesverified
duties of individuals requiring separationnounMWEThis is a compositional phrase, not a term of art. In NIST SP 800-53 AC-5, it appears inside an organization-defined assignment parameter: "Identify and document [Assignment: organization-defined duties of individuals requiring separation]." The phrase simply names the object of that assignment — the set of role-based responsibilities an organization must enumerate before it can enforce separation of duties — and its meaning is fully assembled from its ordinary parts. The two-step operational expectation is to "identify the duties of individuals requiring separation" and then "define system access authorizations to support separation of duties," making plain that the phrase is a procedural instruction, not a coined concept.RequirementRegulated
Duty AssignmentnounMWEa role or function that you are assigned to perform, especially in the armed forcesverified
Dybbuknoun(Jewish folklore) a demon that enters the body of a living person and controls that body's behaviorverified
Dyer's GreenweednounMWEsmall Eurasian shrub having clusters of yellow flowers that yield a dyeverified
Dyer's WeednounMWEeastern North American herb whose yellow flowers are (or were) used in dyeingverified
Dyer's WoadnounMWEEuropean biennial formerly grown for the blue coloring matter yielded by its leavesverified
Dyer's WoodruffnounMWEcreeping European perennial having red or pinkish-white flowers and red roots sometimes used as a substitute for madder in dyeingverified
dynamic attack surfacenounMWEThe automated, on-the-fly changes of an information system's characteristics to thwart actions of an adversary.Capability
Dynamic BalancenounMWE(aeronautics) the state of equilibrium in which centrifugal forces due to a rotating mass (e.g., a propeller) do not produce force in the shaft and so vibration is reducedverified
Dynamic Link LibrarynounMWEA collection of small programs, any of which can be called when needed by a larger program that is running in the computer. The small program that lets the larger program communicate with a specific device such as a printer or scanner is often packaged as a DLL program (usually referred to as a DLL file).System
Dynamic portsnounMWEDynamic and/or private ports--49152 through 65535: Not listed by IANA because of their dynamic nature.Network
Dynamic ProcessnounMWEThe process in which one or more paths are defined and may be utilized based on the conditions present at the time of execution.Process
Dynamic Routing ProtocolnounMWEAllows network devices to learn routes. Ex. RIP, EIGRP Dynamic routing occurs when routers talk to adjacent routers, informing each other of what networks each router is currently connected to. The routers must communicate using a routing protocol, of which there are many to choose from. The process on the router that is running the routing protocol, communicating with its neighbor routers, is usually called a routing daemon. The routing daemon updates the kernel's routing table with information it receives from neighbor routers.Network
Dynamic SubsystemnounMWEA subsystem that is not continually present during the execution phase of an information system. Service-oriented architectures and cloud computing architectures are examples of architectures that employ dynamic subsystems.System
Dynamic ViscositynounMWEa measure of the resistance to flow of a fluid under an applied forceverified
Dynamismnounany of the various theories or doctrines or philosophical systems that attempt to explain the phenomena of the universe in terms of some immanent force or energyverified
Dynamonoungenerator consisting of a coil (the armature) that rotates between the poles of an electromagnet (the field magnet) causing a current to flow in the armatureverified
Dynenouna unit of force equal to the force that imparts an acceleration of 1 cm/sec/sec to a mass of 1 gramverified
Dysarthrianounimpaired articulatory ability resulting from defects in the peripheral motor nerves or in the speech musculatureverified
Dyschezianoundifficulty in defecating (usually as a consequence of long continued voluntary suppression of the urge to defecate)verified
Dysfunctionnoun(medicine) any disturbance in the functioning of an organ or body part or a disturbance in the functioning of a social groupverified
Dysgenicsnounthe study of the operation of factors causing degeneration in the type of offspring producedverified