Glossary · MWE Terms · I
L1 — paginated flat list. Pick a POS, pick a letter.
TermTypeDefinitionClassificationsUpdated
Intercalary YearnounMWEin the Gregorian calendar: any year divisible by 4 except centenary years divisible by 400verified
Intercapitular VeinnounMWEveins connecting the dorsal and palmar veins of the hand or the dorsal and plantar veins of the footverified
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.verified
interconnected systemnounMWEA configuration of two or more distinct IT systems—spanning organizational, network, or authorization boundaries—that are directly linked for the purpose of sharing data, resources, or services. What distinguishes it from a single system with internal components is the presence of a cross-boundary connection that introduces shared risk: each party's security and privacy posture can affect the other's, which is why authority documents treat the connection itself as a security object requiring its own governance instruments (interconnection security agreements, architectural controls, and joint authorization). In practice, standards bodies use the term to frame obligations such as mandating specific architectural constraints, documenting mutual protection requirements, and maintaining the confidentiality, integrity, and availability of information as it moves across the join.verified
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.verified
Intercontinental Ballistic MissilenounMWEa ballistic missile that is capable of traveling from one continent to anotherverified
Intercostal ArterynounMWEseveral arteries and supplying the intercostal spaces of the rib cageverified
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 governmentverified
Interest GroupnounMWE(usually plural) a social group whose members control some field of activity and who have common aimsverified
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.verified
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.verified
Interfacial Surface TensionnounMWEsurface tension at the surface separating two non-miscible liquidsverified
Interfacial TensionnounMWEsurface tension at the surface separating two non-miscible liquidsverified
Interference FringenounMWEone of the light or dark bands produced by the interference and diffraction of lightverified
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)verified
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.verified
Interior DecorationnounMWEthe trade of planning the layout and furnishings of an architectural interiorverified
Interior DecoratornounMWEa person who specializes in designing architectural interiors and their furnishingsverified
Interior DesignnounMWEthe branch of architecture dealing with the selection and organization of furnishings for an architectural interiorverified
Interior DesignernounMWEa person who specializes in designing architectural interiors and their furnishingsverified
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 coastverified
Interior MonologuenounMWEa literary genre that presents a fictional character's sequence of thoughts in the form of a monologueverified
Interlingual RenditionnounMWEa written communication in a second language having the same meaning as the written communication in a first languageverified
Interlocutory InjunctionnounMWEinjunction issued during a trial to maintain the status quo or preserve the subject matter of the litigation until the trial is oververified
Intermediate Certification AuthoritynounMWEA Certification Authority that is subordinate to another CA, and has a CA subordinate to itself.verified
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.verified
Intermediate Temporal ArterynounMWEtemporal artery that goes to the middle part of the cerebral cortex of the temporal lobeverified
Intermediate Vector BosonnounMWEa gauge boson that mediates weak interactions between particlesverified
Intermediate WheatgrassnounMWEAsiatic grass introduced into United States rangelands for pasture and fodderverified
Intermittent ClaudicationnounMWElameness due to pain in leg muscles because the blood supply is inadequateverified
Intermittent CrampnounMWEclinical neurological syndrome characterized by muscular twitching and cramps and (when severe) seizuresverified
Intermittent TetanusnounMWEclinical neurological syndrome characterized by muscular twitching and cramps and (when severe) seizuresverified
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.verified
Internal (entity) personnelnounMWEEmployees, sub-contractors, authorized agents and others acting on behalf of the entity, its affiliates and its service providers.verified
internal auditnounMWEAn audit that is performed for the management and other internal purposes by individuals who are employed by the organization.verified
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.verified
internal audit managernounMWEMonitors the audit scope and risk assessments to ensure that audit coverage remains adequate.verified
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.verified
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.verified
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.verified
Internal Auditory ArterynounMWEan artery that is a branch of the basilar artery that supplies the labyrinthverified
Internal Carotid ArterynounMWEthe branch of the carotid artery that supplies blood to the brain and eyes and internal parts of the headverified
Internal Cerebral VeinnounMWEtwo paired veins passing caudally near the midline and uniting to form the great cerebral veinverified
Internal CombustionnounMWEthe combustion of fuel inside a cylinder (as in an internal-combustion engine)verified
internal controlnounMWEA process, effected by an entity's board of directors, management, and other personnel, designed to provide reasonable assurance regarding the achievement of objectives relating to operations, reporting, and compliance.verified
Internal Iliac ArterynounMWEthe inner branch of the common iliac artery on either side of the bodyverified
Internal Iliac VeinnounMWEa vein that unites with the external iliac vein to form the common iliac veinverified
Internal Maxillary ArterynounMWEthe maxillary artery that supplies deep structure of the face and some of the meningesverified
Internal MedicinenounMWEthe branch of medicine that deals with the diagnosis and nonsurgical treatment of diseases of the internal organs especially in adultsverified
Internal NetworknounMWEA network in which the establishment, maintenance, and provisioning of security controls are under the direct control of organizational employees or contractors or in which the cryptographic encapsulation or similar security technology implemented between organization-controlled endpoints provides the same effect (with regard to confidentiality and integrity). An internal network is typically organization-owned yet may be organizationcontrolled while not being organization-owned.verified
internal processnounMWEAll the activities and key processes required in order for the company to excel at providing the value expected by the customers.verified
Internal RespirationnounMWEthe metabolic processes whereby certain organisms obtain energy from organic moleculesverified
internal risk managementnounMWEInternal risk management involves all activities relating to the processes of analyzing exposure to risk and determining appropriate counter-measures.verified
Internal SecretionnounMWEthe secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effectverified
Internal Security ControlsnounMWEHardware, firmware, or software features within an information system that restrict access to resources only to authorized subjects.verified
Internal Security TestingnounMWESecurity testing conducted from inside the organization’s security perimeter.verified
Internal ValiditynounMWEthe degree to which a study or experiment is free from flaws in its internal structure and its results can therefore be taken to represent the true nature of the phenomenon. In other words, internal validity pertains to the soundness of results obtained within the controlled conditions of a particular study, specifically with respect to whether one can draw reasonable conclusions about cause-and-effect relationships among variables.verified
internal web proxy servernounMWE** A network intermediary deployed within an organization's trust boundary that terminates and re-originates outbound HTTP/HTTPS requests on behalf of internal clients, making it the sole authorized source of web traffic leaving the enterprise perimeter. It breaks the direct connection between client and server, accepting and forwarding traffic while closing the straight path between internal and external networks, which prevents external parties from observing internal addressing and topology details. In information flow enforcement practice, flow control restrictions include restricting requests to the Internet that are not from the internal web proxy server — meaning the server functions as a mandatory chokepoint: any outbound web request that did not originate from it is treated as a policy violation and blocked. Enforcement occurs in boundary protection devices such as gateways, routers, guards, and firewalls that employ rule sets or configuration settings to restrict system services and provide packet- or message-filtering capability.
**VERDICT:** TERM_OF_ART
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**Sources cited:**
- NIST SP 800-171 Rev. 2, §3.1.3 — *Control the flow of CUI in accordance with approved autverified
Internal-Combustion EnginenounMWEa heat engine in which combustion occurs inside the engine rather than in a separate furnaceverified
International AmperenounMWEa former unit of electric current (slightly smaller than the SI ampere)verified
International Law Enforcement AgencynounMWEan international administrative unit responsible for law enforcementverified
International Morse CodenounMWEa telegraph code in which letters and numbers are represented by strings of dots and dashes (short and long signals)verified
International OrganisationnounMWEan international alliance involving many different countriesverified
International OrganizationnounMWEan international alliance involving many different countriesverified
International Organization for Standardization (ISO)nounMWEAn independent, non-governmental, international organization that brings together experts to share knowledge and develop voluntary, consensus-based, market-relevant international standards.verified