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Glossary · Nouns · C

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TermTypeDefinitionClassificationsUpdated
computer portnounMWEA computer port is a connection point or interface between a computer and an external or internal device. Internal ports may connect such devices as hard drives and CD ROM or DVD drives; external ports may connect modems, printers, mice and other devices.PhysicalMay 12, 2026
Computer ProgramnounMWE(computer science) a sequence of instructions that a computer can interpret and executeverifiedMay 18, 2026
Computer ProgramingnounMWEcreating a sequence of instructions to enable the computer to do somethingverifiedMay 18, 2026
Computer ProgrammenounMWE(computer science) a sequence of instructions that a computer can interpret and executeverifiedMay 18, 2026
Computer ProgrammernounMWEa person who designs and writes and tests computer programsverifiedMay 18, 2026
Computer ProgrammingnounMWEcreating a sequence of instructions to enable the computer to do somethingverifiedMay 18, 2026
computer roomnounMWEA facility used to house computer systems and associated components, such as telecommunications and storage systems, generally including redundant or backup power supplies, redundant data communications connections, environmental controls (e.g., air conditioning, fire suppression) and various security devices.PhysicalRestrictedMay 9, 2026
Computer SciencenounMWEthe branch of engineering science that studies (with the aid of computers) computable processes and structuresverifiedMay 18, 2026
Computer ScientistnounMWEa scientist who specializes in the theory of computation and the design of computersverifiedMay 18, 2026
Computer ScreennounMWEa screen used to display the output of a computer to the userverifiedMay 18, 2026
Computer SecuritynounMWEMeasures and controls that ensure confidentiality, integrity, and availability of information system assets including hardware, software, firmware, and information being processed, stored, and communicated.CapabilityMay 9, 2026
Computer Security Incident Response TeamnounMWEA capability set up for the purpose of assisting in responding to computer security-related incidents; also called a Computer Incident Response Team (CIRT) or a CIRC (Computer Incident Response Center, Computer Incident Response Capability).CapabilityMay 9, 2026
Computer Security ObjectnounMWEA resource, tool, or mechanism used to maintain a condition of security in a computerized environment. These objects are defined in terms of attributes they possess, operations they perform or are performed on them, and their relationship with other objects.ControlMay 9, 2026
Computer Security Objects RegisternounMWEA collection of Computer Security Object names and definitions kept by a registration authority.ArtifactInternalMay 9, 2026
Computer Security SubsystemnounMWEHardware/software designed to provide computer security features in a larger system environment.SystemMay 9, 2026
Computer SimulationnounMWE(computer science) the technique of representing the real world by a computer programverifiedMay 18, 2026
Computer SoftwarenounMWE(computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memoryverifiedMay 18, 2026
Computer StoragenounMWEan electronic memory deviceverifiedMay 18, 2026
Computer StorenounMWEa store that sells computers to the small businessperson or personal userverifiedMay 18, 2026
Computer TechnologynounMWEthe activity of designing and constructing and programming computersverifiedMay 18, 2026
Computer UsernounMWEa person who uses computers for work or entertainment or communication or businessverifiedMay 18, 2026
Computer VirusnounMWEa software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computerverifiedMay 18, 2026
Computer VisionnounMWEAn image understanding task that automatically builds a description not only of the image itself, but of the three dimensional scene that it depicts.CapabilityMay 18, 2026
Computer-Aided DesignnounMWEsoftware used in art and architecture and engineering and manufacturing to assist in precision drawingverifiedMay 18, 2026
Computer-Oriented LanguagenounMWEa programming language designed for use on a specific class of computersverifiedMay 18, 2026
Computerizationnounthe control of processes by computerverifiedMay 18, 2026
Computerized Axial TomographynounMWEa method of examining body organs by scanning them with X rays and using a computer to construct a series of cross-sectional scans along a single axisverifiedMay 18, 2026
Computerized Axial Tomography ScannernounMWEa tomograph that constructs a 3-D model of an object by combining parallel planesverifiedMay 18, 2026
Computerized TomographynounMWEa method of examining body organs by scanning them with X rays and using a computer to construct a series of cross-sectional scans along a single axisverifiedMay 18, 2026
Computingnounthe branch of engineering science that studies (with the aid of computers) computable processes and structuresverifiedMay 18, 2026
Computing DevicenounMWEa machine for performing calculations automaticallyverifiedMay 18, 2026
Computing EnvironmentnounMWEWorkstation or server (host) and its operating system, peripherals, and applications.SystemMay 9, 2026
Computing MachinenounMWEa machine for performing calculations automaticallyverifiedMay 18, 2026
Computing SystemnounMWEa system of one or more computers and associated software with common storageverifiedMay 18, 2026
Comradenounused as a term of address for those male persons engaged in the same movementverifiedMay 18, 2026
Comradelinessnounthe quality of affording easy familiarity and sociabilityverifiedMay 18, 2026
Comraderynounthe quality of affording easy familiarity and sociabilityverifiedMay 18, 2026
Comradeshipnounthe quality of affording easy familiarity and sociabilityverifiedMay 18, 2026
COMSECnounCommunications Security.CapabilityRegulatedCUIMay 9, 2026
COMSEC AccountnounMWEAdministrative entity, identified by an account number, used to maintain accountability, custody, and control of COMSEC material.IdentityRegulatedCUIMay 9, 2026
COMSEC Account AuditnounMWEExamination of the holdings, records, and procedures of a COMSEC account ensuring all accountable COMSEC material is properly handled and safeguarded.ProcessRegulatedCUIMay 9, 2026
COMSEC AidnounMWECOMSEC material that assists in securing telecommunications and is required in the production, operation, or maintenance of COMSEC systems and their components. COMSEC keying material, callsign/frequency systems, and supporting documentation, such as operating and maintenance manuals, are examples of COMSEC aids.DataRegulatedCUIMay 9, 2026
COMSEC AssemblynounMWEGroup of parts, elements, subassemblies, or circuits that are removable items of COMSEC equipment.PhysicalRegulatedCUIMay 9, 2026
COMSEC BoundarynounMWEDefinable perimeter encompassing all hardware, firmware, and software components performing critical COMSEC functions, such as key generation, handling, and storage.ControlRegulatedCUIMay 9, 2026
COMSEC Chip SetnounMWECollection of NSA-approved microchips.PhysicalRegulatedCUIMay 9, 2026
COMSEC Control ProgramnounMWEComputer instructions or routines controlling or affecting the externally performed functions of key generation, key distribution, message encryption/decryption, or authentication.ControlRegulatedCUIMay 9, 2026
COMSEC CustodiannounMWEIndividual designated by proper authority to be responsible for the receipt, transfer, accounting, safeguarding, and destruction of COMSEC material assigned to a COMSEC account.RoleMay 9, 2026
COMSEC DemilitarizationnounMWEProcess of preparing COMSEC equipment for disposal by extracting all CCI, classified, or cryptographic (CRYPTO) marked components for their secure destruction, as well as defacing and disposing of the remaining equipment hulk.ProcessRegulatedCUIMay 9, 2026
COMSEC ElementnounMWERemovable item of COMSEC equipment, assembly, or subassembly; normally consisting of a single piece or group of replaceable parts.PhysicalRegulatedCUIMay 9, 2026
COMSEC End-itemnounMWEEquipment or combination of components ready for use in a COMSEC application.PhysicalRegulatedCUIMay 9, 2026
COMSEC EquipmentnounMWEEquipment designed to provide security to telecommunications by converting information to a form unintelligible to an unauthorized interceptor and, subsequently, by reconverting such information to its original form for authorized recipients; also, equipment designed specifically to aid in, or as an essential element of, the conversion process. COMSEC equipment includes crypto-equipment, crypto-ancillary equipment, cryptographic production equipment, and authentication equipment.PhysicalRegulatedCUIMay 9, 2026
COMSEC FacilitynounMWEAuthorized and approved space used for generating, storing, repairing, or using COMSEC material.PhysicalRegulatedCUIMay 9, 2026
COMSEC IncidentnounMWEOccurrence that potentially jeopardizes the security of COMSEC material or the secure electrical transmission of national security information or information governed by 10 U.S.C. Section 2315.EventRegulatedCUIMay 9, 2026
COMSEC InsecuritynounMWECOMSEC incident that has been investigated, evaluated, and determined to jeopardize the security of COMSEC material or the secure transmission of information.EventRegulatedCUIMay 9, 2026
COMSEC ManagernounMWEIndividual who manages the COMSEC resources of an organization.RoleRegulatedCUIMay 9, 2026
COMSEC MaterialnounMWEItem designed to secure or authenticate telecommunications. COMSEC material includes, but is not limited to key, equipment, devices, documents, firmware, or software that embodies or describes cryptographic logic and other items that perform COMSEC functions.DataRegulatedCUIMay 9, 2026
COMSEC Material Control SystemnounMWELogistics and accounting system through which COMSEC material marked "CRYPTO" is distributed, controlled, and safeguarded. Included are the COMSEC central offices of record, crypto logistic depots, and COMSEC accounts. COMSEC material other than key may be handled through the CMCS.SystemRegulatedCUIMay 9, 2026
COMSEC ModulenounMWERemovable component that performs COMSEC functions in a telecommunications equipment or system.PhysicalRegulatedCUIMay 9, 2026
COMSEC MonitoringnounMWEAct of listening to, copying, or recording transmissions of one's own official telecommunications to analyze the degree of security.ProcessRegulatedCUIMay 9, 2026
COMSEC ProfilenounMWEStatement of COMSEC measures and materials used to protect a given operation, system, or organization.ArtifactRegulatedCUIMay 9, 2026
COMSEC SurveynounMWEOrganized collection of COMSEC and communications information relative to a given operation, system, or organization.ArtifactRestrictedCUIMay 9, 2026
COMSEC System DatanounMWEInformation required by a COMSEC equipment or system to enable it to properly handle and control key.DataRegulatedCUIMay 9, 2026
COMSEC TrainingnounMWETeaching of skills relating to COMSEC accounting, use of COMSEC aids, or installation, use, maintenance, and repair of COMSEC equipment.ProcessRegulatedCUIMay 9, 2026
Con ArtistnounMWEa swindler who exploits the confidence of his victimverifiedMay 18, 2026
Con GamenounMWEa swindle in which you cheat at gambling or persuade a person to buy worthless propertyverifiedMay 18, 2026
Con MannounMWEa swindler who exploits the confidence of his victimverifiedMay 18, 2026
Conacastenountropical South American tree having a wide-spreading crown of bipinnate leaves and coiled ear-shaped fruitsverifiedMay 18, 2026
Concatenationnounthe linking together of a consecutive series of symbols or events or ideas etcverifiedMay 18, 2026
Concave LensnounMWEa lens such that a parallel beam of light passing through it is caused to diverge or spread outverifiedMay 18, 2026
Concave PolygonnounMWEa polygon such that there is a straight line that cuts it in four or more pointsverifiedMay 18, 2026
Concave PolyhedronnounMWEa polyhedron some of whose plane sections are concave polygonsverifiedMay 18, 2026
Concave ShapenounMWEa shape that curves or bends inwardverifiedMay 18, 2026
Concavenessnounthe property possessed by a concave shapeverifiedMay 18, 2026
Concavitynounthe property possessed by a concave shapeverifiedMay 18, 2026
Concealernouna makeup product for hiding attributes of the skin, such as blemishesverifiedMay 18, 2026
Concealmentnouna covering that serves to conceal or shelter somethingverifiedMay 18, 2026
Concedingnounthe act of conceding or yieldingverifiedMay 18, 2026
Conceitnounan elaborate poetic image or a far-fetched comparison of very dissimilar thingsverifiedMay 18, 2026
Conceitednessnounthe trait of being unduly vain and conceitedverifiedMay 18, 2026
Conceivabilitynounthe state of being conceivableverifiedMay 18, 2026
Conceivablenessnounthe state of being conceivableverifiedMay 18, 2026
Conceivernounsomeone who creates new thingsverifiedMay 18, 2026
Concentrated FirenounMWEfire from two or more weapons directed at a single target or area (as fire by batteries of two or more warships)verifiedMay 18, 2026
Concentrationnounstrengthening the concentration (as of a solute in a mixture) by removing diluting materialverifiedMay 18, 2026
Concentration CampnounMWEa penal camp where political prisoners or prisoners of war are confined, usually under harsh conditionsverifiedMay 18, 2026
Concentration GradientnounMWEa gradient in concentration of a solute as a function of distance through a solutionverifiedMay 18, 2026
ConcentratornounIn data transmission, a concentrator is a functional unit that permits a common path to handle more data sources than there are channels currently available within the path. A device that connects a number of circuits, which are not all used at once, to a smaller group of circuits for economy.SystemMay 9, 2026
Concentricitynounthe quality of having the same center (as circles inside one another)verifiedMay 18, 2026
Conceptnounan abstract or general idea inferred or derived from specific instancesverifiedMay 18, 2026
Concept AlbumnounMWEan album whose recordings are unified by some theme (instrumental or lyrical or narrative or compositional)verifiedMay 18, 2026
Concept DriftnounMWESystems that classify or predict a concept (e.g., credit ratings or computer intrusion monitors) over time can suffer performance loss when the concept they are tracking changes. This is referred to as concept drift. This can either be a natural process that occurs without a reference to the system, or an active process, where others are reacting to the system (e.g., virus detection).VulnerabilityMay 18, 2026
Conceptionnounan abstract or general idea inferred or derived from specific instancesverifiedMay 18, 2026
Conceptual SemanticsnounMWEthe branch of semantics that studies the cognitive aspects of meaningverifiedMay 18, 2026
Conceptualisationnouninventing or contriving an idea or explanation and formulating it mentallyverifiedMay 18, 2026
Conceptualismnounthe doctrine that the application of a general term to various objects indicates the existence of a mental entity that mediates the applicationverifiedMay 18, 2026
Conceptualitynounan elaborated conceptverifiedMay 18, 2026
Conceptualizationnouninventing or contriving an idea or explanation and formulating it mentallyverifiedMay 18, 2026
Conceptusnounan animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval lifeverifiedMay 18, 2026
Concert BandnounMWEa group of musicians playing brass and woodwind and percussion instrumentsverifiedMay 18, 2026
Concert DancenounMWEa theatrical representation of a story that is performed to music by trained dancersverifiedMay 18, 2026