Glossary · Nouns · Z
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TermTypeDefinitionClassificationsUpdated
Zamangnounlarge ornamental tropical American tree with bipinnate leaves and globose clusters of flowers with crimson stamens and seed pods that are eaten by cattleverified
Zebra MusselnounMWEinch long mollusk, known for being a highly invasive species in various parts of the worldverified
Zenithnounin astronomy, the point above the observer that is directly opposite the nadir on the imaginary sphere against which celestial bodies appear to be projectedverified
Zeolitenounany of a family of glassy minerals analogous to feldspar containing hydrated aluminum silicates of calcium or sodium or potassiumverified
Zepnouna large sandwich made of a long crusty roll split lengthwise and filled with meats, cheese, tomato, onion, lettuce, and condimentsverified
Zero Coupon BondnounMWEa bond that is issued at a deep discount from its value at maturity and pays no interest during the life of the bondverified
Zero DaynounMWEThe "Day Zero" or "Zero Day" is the day a new vulnerability is made known. In some cases, a "zero day" exploit is referred to an exploit for which no patch is available yet. ("day one" - day at which the patch is made available).Vulnerability
Zero PointnounMWEthe point on a scale from which positive or negative numerical quantities can be measuredverified
Zero TolerancenounMWEextreme intolerance of antisocial behavior, usually by an uncompromising application of the lawverified
Zero-Coupon SecuritynounMWEa security that makes no interest payments but instead is sold at a deep discount from its face valueverified
Zero-day attacknounMWEAn attack on a piece of software that has a vulnerability for which there is no known patch.Vulnerability
Zero-day-exploitnounA vulnerability that is exploited before the software creator/vendor is even aware of it's existenceVulnerabilityRestricted
ZeroizationnounA method of erasing electronically stored data, cryptographic keys, and Credentials Service Providers (CSPs) by altering or deleting the contents of the data storage to prevent recovery of the data.ControlRegulatedCUI
Zigguratnouna rectangular tiered temple or terraced mound erected by the ancient Assyrians and Babyloniansverified
Zikkuratnouna rectangularly tiered temple or terraced mound erected by the ancient Assyrians and Babyloniansverified
Zikuratnouna rectangular tiered temple or terraced mound erected by the ancient Assyrians and Babyloniansverified
Zip CodenounMWEa code of letters and digits added to a postal address to aid in the sorting of mailverified
Zip FastenernounMWEa fastener for locking together two toothed edges by means of a sliding tabverified
Zitnouna small and inflamed elevation of the skin caused by the collection of excess oils in poresverified
Zodiacnounin astrology, a circular diagram representing the 12 zodiacal constellations and showing their signsverified
Zombinouna cocktail made up of several kinds of rum with fruit juice and usually apricot liqueurverified
Zombienouna cocktail made up of several kinds of rum with fruit juice and usually apricot liqueurverified
Zone FirenounMWEartillery or mortar fire delivered in a constant direction at several quadrant elevationsverified
Zone Of ControlnounMWEThree-dimensional space surrounding equipment that processes classified and/or sensitive information within which TEMPEST exploitation is not considered practical or where legal authority to identify and remove a potential TEMPEST exploitation exists.PhysicalRestrictedCUI
Zone of InteriornounMWEthe part of the theater of war not included in the theater of operationsverified
Zoningnoundividing an area into zones or sections reserved for different purposes such as residence and business and manufacturing etc.verified
Zooidnounone of the distinct individuals forming a colonial animal such as a bryozoan or hydrozoanverified
Zoomastigotenounflagellate protozoan lacking photosynthesis and other plant-like characteristicsverified
Zoophytenounany of various invertebrate animals resembling a plant such as a sea anemone or coral or spongeverified