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Glossary · Nouns · I

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TermTypeDefinitionClassificationsUpdated
Intercalary YearnounMWEin the Gregorian calendar: any year divisible by 4 except centenary years divisible by 400verifiedMay 18, 2026
Intercalationnounan insertion into a calendarverifiedMay 18, 2026
Intercapitular VeinnounMWEveins connecting the dorsal and palmar veins of the hand or the dorsal and plantar veins of the footverifiedMay 18, 2026
Intercellular SubstancenounMWEthe body substance in which tissue cells are embeddedverifiedMay 18, 2026
Interceptionnoun(American football) the act of catching a football by a player on the opposing teamverifiedMay 18, 2026
Interceptornouna fast maneuverable fighter plane designed to intercept enemy aircraftverifiedMay 18, 2026
Intercessionnounthe act of intervening (as to mediate a dispute, etc.)verifiedMay 18, 2026
Intercessornouna negotiator who acts as a link between partiesverifiedMay 18, 2026
InterchangenounExchange of transactions between financial institutions participating in a bank card network, based on a common set of rules. Card interchange allows a financial institution's customers to use a bank credit card at any card honoring merchant and to gain access to multiple ATM systems from a single ATM.ProcessMay 9, 2026
Interchange feesnounMWEFees paid by one financial institution to another to cover handling costs and credit risk in a financial institution card transaction. Interchange fees generally flow toward the institution funding the transaction and assuming the risk. In a credit card transaction, the interchange fee is paid by the merchant acquirer accepting the merchant's sales draft to the card-issuing institution, which, in turn, passes the fee to its merchants. In EFT/POS transactions, interchange flows in the opposite direction: the card-issuing institution (or customer) pays the fee to the terminal-owning institution. When a transaction is an off-line debit sale, the card-issuing institution collects an interchange fee from the merchant, rather than from the customer, unlike in an EFT/POS transaction, where the customer pays the interchange fee. Interchange revenue is derived from fees set by the card associations. Depending on the card association, fees can range from 1% to 3% of the value of the transaction. Interchange revenue is recognized as a card issuer's second largest revenue line item.RequirementRegulatedMay 12, 2026
Interchangeabilitynounthe quality of being capable of exchange or interchangeverifiedMay 18, 2026
Interchangeablenessnounthe quality of being capable of exchange or interchangeverifiedMay 18, 2026
Intercomnouna communication system linking different rooms within a building or ship etcverifiedMay 18, 2026
Intercommunicationnounmutual communicationverifiedMay 18, 2026
Intercommunionnounparticipation in Holy Communion by members of more than one church (eg Catholic and Orthodox)verifiedMay 18, 2026
Interconnectednessnouna state of being connected reciprocallyverifiedMay 18, 2026
Interconnectionnoun(computer science) the act of interconnecting (wires or computers or theories etc.)verifiedMay 18, 2026
Interconnection Security AgreementnounMWEA document that regulates security-relevant aspects of an intended connection between an agency and an external system. It regulates the security interface between any two systems operating under two different distinct authorities. It includes a variety of descriptive, technical, procedural, and planning information. It is usually preceded by a formal MOA/MOU that defines high-level roles and responsibilities in management of a cross-domain connection.RequirementRegulatedCUIMay 9, 2026
interconnectivitynounThe state or quality of being connected together. The interaction of a financial institution's internal and external systems and applications and the entities with which they are linked.NetworkRegulatedMay 12, 2026
Intercontinental Ballistic MissilenounMWEa ballistic missile that is capable of traveling from one continent to anotherverifiedMay 18, 2026
Intercostal ArterynounMWEseveral arteries and supplying the intercostal spaces of the rib cageverifiedMay 18, 2026
Intercostal MusclenounMWEmuscles between the ribsverifiedMay 18, 2026
Intercostal VeinnounMWEseveral veins draining the intercostal spaces of the rib cageverifiedMay 18, 2026
Intercoursenounthe act of sexual procreation between a man and a womanverifiedMay 18, 2026
Interdepartmental SupportnounMWEprovision of logistic (or administrative) support by one or more of the military services to one or more departments or agencies of the United States governmentverifiedMay 18, 2026
Interdependencenouna reciprocal relation between interdependent entities (objects or individuals or groups)verifiedMay 18, 2026
Interdependencynouna reciprocal relation between interdependent entities (objects or individuals or groups)verifiedMay 18, 2026
Interdictionnouna court order prohibiting a party from doing a certain activityverifiedMay 18, 2026
Interdiction FirenounMWEfire directed to an area to prevent the enemy from using that areaverifiedMay 18, 2026
Interest ExpensenounMWEinterest paid on loansverifiedMay 18, 2026
Interest GroupnounMWE(usually plural) a social group whose members control some field of activity and who have common aimsverifiedMay 18, 2026
Interest RatenounMWEthe percentage of a sum of money charged for its useverifiedMay 18, 2026
interested personnelnounMWEThis role focuses on persons or organizations that have a recognizable stake in the outcome of a court matter or who are potentially being affected by a situation or hoping to make money off of the situation. Any individual or organization that has a recognizable stake in the outcome of a court matter, may be affected by a situation, or make money from the situation should be assigned to this role.RoleMay 9, 2026
Interestednessnounthe state of being interestedverifiedMay 18, 2026
Interestingnessnounthe power of attracting or holding one's attention (because it is unusual or exciting etc.)verifiedMay 18, 2026
InterfacenounCommon boundary between independent systems or modules where interactions take place.SystemMay 9, 2026
Interface Control DocumentnounMWETechnical document describing interface controls and identifying the authorities and responsibilities for ensuring the operation of such controls. This document is baselined during the preliminary design review and is maintained throughout the information system life cycle.ArtifactRegulatedCUIMay 9, 2026
Interfacial Surface TensionnounMWEsurface tension at the surface separating two non-miscible liquidsverifiedMay 18, 2026
Interfacial TensionnounMWEsurface tension at the surface separating two non-miscible liquidsverifiedMay 18, 2026
Interferencenounelectrical or acoustic activity that can disturb communicationverifiedMay 18, 2026
Interference FringenounMWEone of the light or dark bands produced by the interference and diffraction of lightverifiedMay 18, 2026
Interferometernounany measuring instrument that uses interference patterns to make accurate measurements of wavesverifiedMay 18, 2026
Interferonnounan antiviral protein produced by cells that have been invaded by a virusverifiedMay 18, 2026
Intergalactic SpacenounMWEthe space between galaxiesverifiedMay 18, 2026
Interim Approval to OperatenounMWETemporary authorization granted by a DAA for an information system to process information based on preliminary results of a security evaluation of the system. (To be replaced by ATO and POA&M)ArtifactRegulatedCUIMay 9, 2026
Interim Approval to TestnounMWETemporary authorization to test an information system in a specified operational information environment within the time frame and under the conditions or constraints enumerated in the written authorization.RequirementRegulatedCUIMay 9, 2026
Interim OverhaulnounMWEan overhaul between the regular times for overhaulingverifiedMay 18, 2026
Interior AnglenounMWEthe angle inside two adjacent sides of a polygonverifiedMay 18, 2026
Interior DecorationnounMWEthe trade of planning the layout and furnishings of an architectural interiorverifiedMay 18, 2026
Interior DecoratornounMWEa person who specializes in designing architectural interiors and their furnishingsverifiedMay 18, 2026
Interior DesignnounMWEthe branch of architecture dealing with the selection and organization of furnishings for an architectural interiorverifiedMay 18, 2026
Interior DesignernounMWEa person who specializes in designing architectural interiors and their furnishingsverifiedMay 18, 2026
Interior DoornounMWEa door that closes off rooms within a buildingverifiedMay 18, 2026
Interior Live OaknounMWEa small shrubby evergreen tree of western North America similar to the coast live oak but occurring chiefly in foothills of mountain ranges removed from the coastverifiedMay 18, 2026
Interior MonologuenounMWEa literary genre that presents a fictional character's sequence of thoughts in the form of a monologueverifiedMay 18, 2026
Interjectionnounthe action of interjecting or interposing an action or remark that interruptsverifiedMay 18, 2026
Interlanguagenouna common language used by speakers of different languagesverifiedMay 18, 2026
Interlayernouna layer placed between other layersverifiedMay 18, 2026
Interleafnouna blank leaf inserted between the leaves of a bookverifiedMay 18, 2026
Interleukinnounany of several lymphokines that promote macrophages and killer T cells and B cells and other components of the immune systemverifiedMay 18, 2026
Interlingual RenditionnounMWEa written communication in a second language having the same meaning as the written communication in a first languageverifiedMay 18, 2026
Interlocutornounthe performer in the middle of a minstrel line who engages the others in talkverifiedMay 18, 2026
Interlocutory InjunctionnounMWEinjunction issued during a trial to maintain the status quo or preserve the subject matter of the litigation until the trial is oververifiedMay 18, 2026
Interlopernounsomeone who intrudes on the privacy or property of another without permissionverifiedMay 18, 2026
Intermarriagenounmarriage to a person belonging to a tribe or group other than your own as required by custom or lawverifiedMay 18, 2026
Intermaxillary SuturenounMWEthe suture between the two maxillae of the upper jawboneverifiedMay 18, 2026
Intermediarynouna negotiator who acts as a link between partiesverifiedMay 18, 2026
Intermediate Certification AuthoritynounMWEA Certification Authority that is subordinate to another CA, and has a CA subordinate to itself.SystemRegulatedMay 9, 2026
Intermediate HostnounMWEa host that is used by a parasite in the course of its life cycleverifiedMay 18, 2026
intermediate systemnounMWEA Cyber Asset or collection of Cyber Assets performing access control to restrict Interactive Remote Access to only authorized users. The Intermediate System must not be located inside the Electronic Security Perimeter.SystemRegulatedCUIMay 9, 2026
Intermediate Temporal ArterynounMWEtemporal artery that goes to the middle part of the cerebral cortex of the temporal lobeverifiedMay 18, 2026
Intermediate Vector BosonnounMWEa gauge boson that mediates weak interactions between particlesverifiedMay 18, 2026
Intermediate WheatgrassnounMWEAsiatic grass introduced into United States rangelands for pasture and fodderverifiedMay 18, 2026
Intermediationnounthe act of intervening for the purpose of bringing about a settlementverifiedMay 18, 2026
Intermediatornouna negotiator who acts as a link between partiesverifiedMay 18, 2026
Intermentnounthe ritual placing of a corpse in a graveverifiedMay 18, 2026
Intermezzonouna short piece of instrumental music composed for performance between acts of a drama or operaverifiedMay 18, 2026
Intermissionnouna time interval during which there is a temporary cessation of somethingverifiedMay 18, 2026
Intermittencenounthe quality of being intermittentverifiedMay 18, 2026
Intermittencynounthe quality of being intermittentverifiedMay 18, 2026
Intermittent ClaudicationnounMWElameness due to pain in leg muscles because the blood supply is inadequateverifiedMay 18, 2026
Intermittent CrampnounMWEclinical neurological syndrome characterized by muscular twitching and cramps and (when severe) seizuresverifiedMay 18, 2026
Intermittent TetanusnounMWEclinical neurological syndrome characterized by muscular twitching and cramps and (when severe) seizuresverifiedMay 18, 2026
Intermixturenounan additional ingredient that is added by mixing with the baseverifiedMay 18, 2026
Internal "trusted" zonenounMWEA channel in which the end points are known and data integrity is protected in transit. Depending on the communications protocol used, data privacy may be protected in transit. Examples include SSLIP security and a secure physical connection.NetworkInternalMay 12, 2026
Internal AnglenounMWEthe angle inside two adjacent sides of a polygonverifiedMay 18, 2026
internal auditnounMWEAn audit that is performed for the management and other internal purposes by individuals who are employed by the organization.ProcessConfidentialMay 9, 2026
internal audit functionnounMWEAn appraisal activity established or provided as a service to the entity. Its functions include, amongst other things, examining, evaluating and monitoring the adequacy and effectiveness of internal control.CapabilityInternalMay 12, 2026
internal audit managernounMWEMonitors the audit scope and risk assessments to ensure that audit coverage remains adequate.RoleInternalMay 9, 2026
internal audit programnounMWEAn internal audit program defines the type of internal audit being conducted (IT, HR, financial, etc.), the specific subject(s) attended to, the roles and responsibilities of those involved, the method being used to conduct the audit, and the schedule of the audit.ProcessInternalMay 9, 2026
internal audit reportnounMWEA report issued by an independent auditor within an organization that expresses an opinion about whether the financial statements present fairly a company's financial position, operating results, and cash flows in accordance with generally accepted accounting principles.ArtifactConfidentialMay 12, 2026
internal auditornounMWEThis role is focused on providing independent and objective evaluations of the organization's financial records, systems, or anything else being audited. Any individual who performs internal audits should be assigned to this role.RoleMay 9, 2026
Internal Auditory ArterynounMWEan artery that is a branch of the basilar artery that supplies the labyrinthverifiedMay 18, 2026
Internal Auditory VeinnounMWEveins that drain the inner earverifiedMay 18, 2026
Internal Carotid ArterynounMWEthe branch of the carotid artery that supplies blood to the brain and eyes and internal parts of the headverifiedMay 18, 2026
Internal Cerebral VeinnounMWEtwo paired veins passing caudally near the midline and uniting to form the great cerebral veinverifiedMay 18, 2026
Internal CombustionnounMWEthe combustion of fuel inside a cylinder (as in an internal-combustion engine)verifiedMay 18, 2026
internal communicationnounMWEA message that is sent from within an organization.DataInternalMay 12, 2026
internal controlnounMWEThe purpose of this task is to provide reasonable assurance that operations are effective and efficient, financial reporting is reliable, and applicable laws and regulations are being followed.ControlMay 12, 2026
Internal DrivenounMWEa drive mounted inside of a computerverifiedMay 18, 2026