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Glossary · Nouns · C

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TermTypeDefinitionClassificationsUpdated
cybersecurity risk managementnounMWEThe process of identifying risks and vulnerabilities and applying administrative actions and comprehensive solutions to ensure that the organization is adequately protected.ProcessMay 12, 2026
cybersecurity roles and responsibilitiesnounMWEThe functions and duties of personnel who are responsible for preventing cybersecurity events that disrupt operations or affected parties, assigned and performed in conformance with pertinent laws and standards.RoleMay 9, 2026
Cybersecurity SubcategorynounMWEThe subdivision of a Cybersecurity Category into specific outcomes of technical and/or management activities. Examples of Subcategories include “External information systems are catalogued,” “Data-at-rest is protected,” and “Notifications from detection systems are investigated.”.FrameworkMay 12, 2026
cybersecurity trainingnounMWEActivities that are used to teach people about tools, policies, security concepts, security safeguards, guidelines, risk management approaches, actions, training, best practices, assurance and technologies that can be used to protect the cyber environment and organization and user’s assets.ProcessInternalMay 12, 2026
cybersecurity updatenounMWEA widely released fix for a cybersecurity related vulnerability.ControlMay 12, 2026
cybersecurity vulnerabilitynounMWEA flaw in a organization's system which leaves it exposed to and defenseless against a cyberthreat.VulnerabilityMay 9, 2026
Cybersexnounsexual arousal involving communication on the internetverifiedMay 18, 2026
cyberspacenounA global domain within the information environment consisting of the interdependent network of information systems infrastructures including the Internet, telecommunications networks, computer systems, and embedded processors and controllers.NetworkMay 9, 2026
Cyberwarnounan assault on electronic communication networksverifiedMay 18, 2026
CyberwarfarenounActivities supported by military organizations with the purpose to threat the survival and well-being of society/foreign entityThreatRegulatedCUIMay 9, 2026
Cyborgnouna human being whose body has been taken over in whole or in part by electromechanical devicesverifiedMay 18, 2026
Cycadnounany tropical gymnosperm of the order CycadalesverifiedMay 18, 2026
Cycad FamilynounMWEancient palmlike plants closely related to ferns in that fertilization is by means of spermatozoidsverifiedMay 18, 2026
CyclamennounMediterranean plant widely cultivated as a houseplant for its showy dark green leaves splotched with silver and nodding white or pink to reddish flowers with reflexed petalsverifiedMay 18, 2026
Cycle of RebirthnounMWE(Hinduism) repeated rebirth in new formsverifiedMay 18, 2026
Cycle Per SecondnounMWEthe unit of frequencyverifiedMay 18, 2026
Cycle RickshawnounMWEa tricycle (usually propelled by pedalling)verifiedMay 18, 2026
Cycles/secondnounthe unit of frequencyverifiedMay 18, 2026
Cyclic DisordernounMWEa mild bipolar disorder that persists over a long timeverifiedMay 18, 2026
Cyclic NeutropenianounMWEneutropenia that occurs periodicallyverifiedMay 18, 2026
Cyclic Redundancy ChecknounMWESometimes called "cyclic redundancy code." A type of checksum algorithm that is not a cryptographic hash but is used to implement data integrity service where accidental changes to data are expected.ControlMay 9, 2026
Cyclical Redundancy ChecknounMWEError checking mechanism that verifies data integrity by computing a polynomial algorithm based checksum.ControlMay 9, 2026
Cyclicitynounthe quality of recurring at regular intervalsverifiedMay 18, 2026
Cyclingnounthe sport of traveling on a bicycle or motorcycleverifiedMay 18, 2026
Cyclistnouna person who rides a bicycleverifiedMay 18, 2026
Cyclobenzaprinenounmuscle relaxant (trade name Flexeril) used for muscle spasms or acute injuryverifiedMay 18, 2026
Cyclodestructive SurgerynounMWEan eye operation that treats glaucoma by destroying the ciliary body with a laserverifiedMay 18, 2026
Cyclohexanolnouna colorless oily alcohol that smells like camphorverifiedMay 18, 2026
Cyclohexanol PhthalatenounMWEthe cyclohexanol ester of phthalic acidverifiedMay 18, 2026
Cyclonenoun(meteorology) rapid inward circulation of air masses about a low pressure centerverifiedMay 18, 2026
Cyclone CellarnounMWEan underground shelter where you can go until a storm passesverifiedMay 18, 2026
Cyclooxygenasenouneither of two related enzymes that control the production of prostaglandins and are blocked by aspirinverifiedMay 18, 2026
Cyclooxygenase-1nounan enzyme that regulates prostaglandins that are important for the health of the stomach lining and kidneysverifiedMay 18, 2026
Cyclooxygenase-2nounan enzyme that makes prostaglandins that cause inflammation and pain and feververifiedMay 18, 2026
Cyclopaedianouna reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialtyverifiedMay 18, 2026
Cyclopean MasonrynounMWEa primitive style of masonry characterized by use of massive stones of irregular shape and sizeverifiedMay 18, 2026
Cyclopedianouna reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialtyverifiedMay 18, 2026
Cyclopianouna developmental abnormality in which there is only one eyeverifiedMay 18, 2026
Cyclopropanenouna colorless flammable gas sometimes used as an inhalation anestheticverifiedMay 18, 2026
Cyclopsnounminute free-swimming freshwater copepod having a large median eye and pear-shaped body and long antennae used in swimmingverifiedMay 18, 2026
Cycloramanouna picture (or series of pictures) representing a continuous sceneverifiedMay 18, 2026
Cycloserinenounan antibiotic that is especially active against the tubercle bacillusverifiedMay 18, 2026
Cyclosisnounthe circulation of cytoplasm within a cellverifiedMay 18, 2026
Cyclostomenounprimitive aquatic vertebrateverifiedMay 18, 2026
Cyclothymianouna mild bipolar disorder that persists over a long timeverifiedMay 18, 2026
Cyclothymic DisordernounMWEa mild bipolar disorder that persists over a long timeverifiedMay 18, 2026
Cyclotronnounan accelerator that imparts energies of several million electron-volts to rapidly moving particlesverifiedMay 18, 2026
Cydernouna beverage made from juice pressed from applesverifiedMay 18, 2026
Cygnetnouna young swanverifiedMay 18, 2026
Cylindernouna solid bounded by a cylindrical surface and two parallel planes (the bases)verifiedMay 18, 2026
Cylinder BlocknounMWEa metal casting containing the cylinders and cooling ducts of an engineverifiedMay 18, 2026
Cylinder HeadnounMWEa detachable plate that covers the closed end of a cylinder chamber in a reciprocating engine or pumpverifiedMay 18, 2026
Cylinder LocknounMWEa lock in which a cylinder rotates to move a boltverifiedMay 18, 2026
Cylinder PressnounMWEa printing press where the type is carried on a flat bed under a cylinder that holds paper and rolls over the typeverifiedMay 18, 2026
Cylindricalitynounthe roundness of a 3-dimensional cylinderverifiedMay 18, 2026
Cylindricalnessnounthe roundness of a 3-dimensional cylinderverifiedMay 18, 2026
Cylixnouna shallow drinking cup with two handlesverifiedMay 18, 2026
Cymanoun(architecture) a molding for a corniceverifiedMay 18, 2026
Cyma RectanounMWEa cyma in which the upper section is concave and the lower section is convexverifiedMay 18, 2026
Cyma ReversanounMWEa molding that (in section) has the shape of an S with the convex part above and the concave part belowverifiedMay 18, 2026
Cymatiumnoun(architecture) a molding for a corniceverifiedMay 18, 2026
Cymbalnouna percussion instrument consisting of a concave brass diskverifiedMay 18, 2026
Cymbalistnouna performer on the cymbalsverifiedMay 18, 2026
Cymbidnounany of various plants of the genus Cymbidium having narrow leaves and a long drooping cluster of numerous showy and variously colored boat-shaped flowersverifiedMay 18, 2026
Cymbidiumnounany of various plants of the genus Cymbidium having narrow leaves and a long drooping cluster of numerous showy and variously colored boat-shaped flowersverifiedMay 18, 2026
Cymenounmore or less flat-topped cluster of flowers in which the central or terminal flower opens firstverifiedMay 18, 2026
Cymenenounany of three isotopes of a colorless aromatic liquid hydrocarbon occurring in the volatile oil of cumin and thyme and used in the manufacture of synthetic resinsverifiedMay 18, 2026
Cymlingnounsquash plant having flattened round fruit with a scalloped edgeverifiedMay 18, 2026
Cymographnounscientific instrument consisting of a rotating drum holding paper on which a stylus traces a continuous record (as of breathing or blood pressure)verifiedMay 18, 2026
Cymulenouna small cyme, generally with few flowersverifiedMay 18, 2026
Cynancumnounany of various mostly giant tropical lianas of Africa and Madagascar having greenish or purple flowers and long smooth podsverifiedMay 18, 2026
Cynicnounsomeone who is critical of the motives of othersverifiedMay 18, 2026
Cynicismnouna cynical feeling of distrustverifiedMay 18, 2026
Cynipid Gall WaspnounMWEsmall solitary wasp that produces galls on oaks and other plantsverifiedMay 18, 2026
Cynipid WaspnounMWEsmall solitary wasp that produces galls on oaks and other plantsverifiedMay 18, 2026
Cynodontnounsmall carnivorous reptilesverifiedMay 18, 2026
Cynophobianouna fear of dogsverifiedMay 18, 2026
Cynosurenounsomething that provides guidance (as Polaris guides mariners)verifiedMay 18, 2026
Cynthia MothnounMWElarge Asiatic moth introduced into the United StatesverifiedMay 18, 2026
Cypressnounany of numerous evergreen conifers of the genus Cupressus of north temperate regions having dark scalelike leaves and rounded conesverifiedMay 18, 2026
Cypress FamilynounMWEcypresses and junipers and many cedarsverifiedMay 18, 2026
Cypress PinenounMWEany of several evergreen trees or shrubs of Australia and northern New CaledoniaverifiedMay 18, 2026
Cypress SedgenounMWEtufted sedge of temperate regionsverifiedMay 18, 2026
Cypress SpurgenounMWEOld World perennial having foliage resembling cypressverifiedMay 18, 2026
Cypress TreenounMWEany of numerous evergreen conifers of the genus Cupressus of north temperate regions having dark scalelike leaves and rounded conesverifiedMay 18, 2026
Cypress VinenounMWEtropical American annual climber having red or white flowers and finely dissected leavesverifiedMay 18, 2026
Cyprinid FishnounMWEsoft-finned mainly freshwater fishes typically having toothless jaws and cycloid scalesverifiedMay 18, 2026
Cypriniform FishnounMWEa soft-finned fish of the order CypriniformesverifiedMay 18, 2026
Cyprinodontnounany member of the family CyprinodontidaeverifiedMay 18, 2026
Cypripedianouna plant or flower of the genus CypripediumverifiedMay 18, 2026
Cyproheptadinenounan antihistamine (trade name Periactin) used to treat some allergic reactionsverifiedMay 18, 2026
Cyrillanounshrub or small tree of southeastern United States to West Indies and BrazilverifiedMay 18, 2026
Cyrilla FamilynounMWEshrubs and trees with leathery leaves and small white flowers in racemes: genera Cyrilla and CliftoniaverifiedMay 18, 2026
Cystnouna small and anatomically normal sac or bladderlike structure, especially one containing fluidverifiedMay 18, 2026
Cystic ArterynounMWEa branch of the hepatic arteryverifiedMay 18, 2026
Cystic Breast DiseasenounMWEthe presence of one or more cysts in a breastverifiedMay 18, 2026
Cystic FibrosisnounMWEan inherited disease which causes secreted fluids in the body to become abnormally sticky and thick, commonly affecting the respiratory and digestive systemsverifiedMay 18, 2026
Cystic Fibrosis Transport RegulatornounMWEthe gene that is mutated in cystic fibrosisverifiedMay 18, 2026
Cystic MastitisnounMWEthe presence of one or more cysts in a breastverifiedMay 18, 2026
Cystic VeinnounMWEvein that drains the gallbladderverifiedMay 18, 2026