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Glossary · Nouns · I

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TermTypeDefinitionClassificationsUpdated
I-Beamnoungirder having a cross section resembling the letter `I'verifiedMay 18, 2026
I.d.nouna card or badge used to identify the bearerverifiedMay 18, 2026
I.e.d.nounan explosive device that is improvisedverifiedMay 18, 2026
I.q.nouna measure of a person's intelligence as indicated by an intelligence testverifiedMay 18, 2026
I/O (Acronym)nounMWEInput/output.SystemMay 9, 2026
IA ArchitecturenounMWEA description of the structure and behavior for an enterprise’s security processes, information security systems, personnel and organizational sub-units, showing their alignment with the enterprise’s mission and strategic plans.FrameworkMay 12, 2026
IA InfrastructurenounMWEThe underlying security framework that lies beyond an enterprise’s defined boundary, but supports its IA and IA-enabled products, its security posture and its risk management plan.SystemRegulatedCUIMay 12, 2026
IA ProductnounMWEProduct whose primary purpose is to provide security services (e.g., confidentiality, authentication, integrity, access control, non-repudiation of data); correct known vulnerabilities; and/or provide layered defense against various categories of non-authorized or malicious penetrations of information systems or networks.CapabilityMay 12, 2026
IA-Enabled Information Technology ProductnounMWEProduct or technology whose primary role is not security, but which provides security services as an associated feature of its intended operating capabilities. Examples include such products as security-enabled Web browsers, screening routers, trusted operating systems, and security-enabled messaging systems.SystemMay 9, 2026
IA-Enabled ProductnounMWEProduct whose primary role is not security, but provides security services as an associated feature of its intended operating capabilities. Note: Examples include such products as security-enabled Web browsers, screening routers, trusted operating systems, and security enabling messaging systems.SystemMay 9, 2026
Iambnouna metrical unit with unstressed-stressed syllablesverifiedMay 18, 2026
Iambusnouna metrical unit with unstressed-stressed syllablesverifiedMay 18, 2026
Ianfunouna woman forced into prostitution for Japanese servicemen during World War IIverifiedMay 18, 2026
Ibexnounwild goat of mountain areas of Eurasia and northern Africa having large recurved hornsverifiedMay 18, 2026
Ibisnounwading birds of warm regions having long slender down-curved billsverifiedMay 18, 2026
Ibn-RoshdnounArabian philosopher born in SpainverifiedMay 18, 2026
Ibn-SinanounArabian physician and influential Islamic philosopherverifiedMay 18, 2026
Ibolium PrivetnounMWEfast-growing and tightly branched hybrid of Ligustrum ovalifolium and Ligustrum obtusifoliumverifiedMay 18, 2026
Ibota PrivetnounMWEfast-growing and tightly branched hybrid of Ligustrum ovalifolium and Ligustrum obtusifoliumverifiedMay 18, 2026
Ibuprofennouna nonsteroidal anti-inflammatory and analgesic medicine (trade names Advil and Motrin and Nuprin) used to relieve the pain of arthritis and as an antipyreticverifiedMay 18, 2026
Icaconounplum-shaped whitish to almost black fruit used for preservesverifiedMay 18, 2026
Ice AgenounMWEany period of time during which glaciers covered a large part of the earth's surfaceverifiedMay 18, 2026
Ice AxnounMWEan ax used by mountain climbers for cutting footholds in iceverifiedMay 18, 2026
Ice AxenounMWEan ax used by mountain climbers for cutting footholds in iceverifiedMay 18, 2026
Ice BagnounMWEa waterproof bag filled with ice: applied to the body (especially the head) to cool or reduce swellingverifiedMay 18, 2026
Ice BearnounMWEwhite bear of Arctic regionsverifiedMay 18, 2026
Ice ChestnounMWEa refrigerator for cooling liquidsverifiedMay 18, 2026
Ice CoffeenounMWEa strong sweetened coffee served over ice with creamverifiedMay 18, 2026
Ice CreamnounMWEfrozen dessert containing cream and sugar and flavoringverifiedMay 18, 2026
Ice CrystalnounMWEsmall crystals of iceverifiedMay 18, 2026
Ice CubenounMWEa small cube of artificial iceverifiedMay 18, 2026
Ice FieldnounMWEa large flat mass of ice (larger than an ice floe) floating at seaverifiedMay 18, 2026
Ice FloenounMWEa flat mass of ice (smaller than an ice field) floating at seaverifiedMay 18, 2026
Ice FognounMWEa dense winter fog containing ice particlesverifiedMay 18, 2026
Ice HockeynounMWEa game played on an ice rink by two opposing teams of six skaters each who try to knock a flat round puck into the opponents' goal with angled sticksverifiedMay 18, 2026
Ice Hockey RinknounMWEan ice rink for playing ice hockeyverifiedMay 18, 2026
Ice LollynounMWEice cream or water ice on a small wooden stickverifiedMay 18, 2026
Ice MachinenounMWEan electric refrigerator to supply ice cubesverifiedMay 18, 2026
Ice MakernounMWEan appliance included in some electric refrigerators for making ice cubesverifiedMay 18, 2026
Ice MassnounMWEa large mass of iceverifiedMay 18, 2026
Ice MilknounMWEsimilar to ice cream but made of milkverifiedMay 18, 2026
Ice NeedlenounMWEsmall crystals of iceverifiedMay 18, 2026
Ice PacknounMWEa waterproof bag filled with ice: applied to the body (especially the head) to cool or reduce swellingverifiedMay 18, 2026
Ice PlantnounMWEOld World annual widely naturalized in warm regions having white flowers and fleshy foliage covered with hairs that resemble iceverifiedMay 18, 2026
Ice RinknounMWEa rink with a floor of ice for ice hockey or ice skatingverifiedMay 18, 2026
Ice ShelfnounMWEice that is attached to land but projects out to seaverifiedMay 18, 2026
Ice ShownounMWEany entertainment performed by ice skatersverifiedMay 18, 2026
Ice SkatenounMWEskate consisting of a boot with a steel blade fitted to the soleverifiedMay 18, 2026
Ice SkatingnounMWEskating on iceverifiedMay 18, 2026
Ice StormnounMWEa storm with freezing rain that leaves everything glazed with iceverifiedMay 18, 2026
Ice TeanounMWEstrong tea served over iceverifiedMay 18, 2026
Ice TongsnounMWEtongs for lifting blocks of iceverifiedMay 18, 2026
Ice WagonnounMWE(formerly) a horse-drawn wagon that delivered ice door to doorverifiedMay 18, 2026
Ice WaternounMWEwater served ice-cold or with iceverifiedMay 18, 2026
Ice YachtnounMWEa sailing vessel with runners and a cross-shaped frameverifiedMay 18, 2026
Ice-Cream BeannounMWEornamental evergreen tree with masses of white flowersverifiedMay 18, 2026
Ice-Cream CakenounMWEice cream molded to look like a cakeverifiedMay 18, 2026
Ice-Cream ConenounMWEice cream in a crisp conical waferverifiedMay 18, 2026
Ice-Cream FloatnounMWEa drink with ice cream floating in itverifiedMay 18, 2026
Ice-Cream SodanounMWEa drink with ice cream floating in itverifiedMay 18, 2026
Ice-Cream SundaenounMWEice cream served with a toppingverifiedMay 18, 2026
Ice-Hockey PlayernounMWEan athlete who plays hockeyverifiedMay 18, 2026
Ice-Skaternounsomeone who engages in ice skatingverifiedMay 18, 2026
Ice-Skating RinknounMWEa rink with a floor of ice for ice hockey or ice skatingverifiedMay 18, 2026
Icebergnounlettuce with crisp tightly packed light-green leaves in a firm headverifiedMay 18, 2026
Iceberg LettucenounMWElettuce with crisp tightly packed light-green leaves in a firm headverifiedMay 18, 2026
Iceboatnouna ship with a reinforced bow to break up ice and keep channels open for navigationverifiedMay 18, 2026
Iceboxnounwhite goods in which food can be stored at low temperaturesverifiedMay 18, 2026
Icebox CakenounMWEice cream molded to look like a cakeverifiedMay 18, 2026
Icebreakernouna ship with a reinforced bow to break up ice and keep channels open for navigationverifiedMay 18, 2026
Icecapnouna mass of ice and snow that permanently covers a large area of land (e.g., the polar regions or a mountain peak)verifiedMay 18, 2026
Iced CoffeenounMWEa strong sweetened coffee served over ice with creamverifiedMay 18, 2026
Iced TeanounMWEstrong tea served over iceverifiedMay 18, 2026
Iced-Tea SpoonnounMWEa teaspoon with a long handleverifiedMay 18, 2026
Icefallnouna steep part of a glacier resembling a frozen waterfallverifiedMay 18, 2026
Icehousenouna house for storing iceverifiedMay 18, 2026
Icemannounsomeone who cuts and delivers iceverifiedMay 18, 2026
Icepicknounpick consisting of a steel rod with a sharp pointverifiedMay 18, 2026
Icetraynouna tray for making cubes of ice in a refrigeratorverifiedMay 18, 2026
Ichneumonnounnorthern African mongooseverifiedMay 18, 2026
Ichneumon FlynounMWEhymenopterous insect that resembles a wasp and whose larvae are parasitic on caterpillars and other insect larvaeverifiedMay 18, 2026
Ichornoun(Greek mythology) the rarified fluid said to flow in the veins of the GodsverifiedMay 18, 2026
Ichthyolatrynounthe worship of fishverifiedMay 18, 2026
Ichthyologistnouna zoologist who studies fishesverifiedMay 18, 2026
Ichthyologynounthe branch of zoology that studies fishesverifiedMay 18, 2026
Ichthyosaurnounany of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbsverifiedMay 18, 2026
Ichthyosaurusnounichthyosaurs of the JurassicverifiedMay 18, 2026
Ichthyosisnounany of several congenital diseases in which the skin is dry and scaly like a fishverifiedMay 18, 2026
Iciclenounice resembling a pendent spear, formed by the freezing of dripping waterverifiedMay 18, 2026
Icinessnouncoldness due to a cold environmentverifiedMay 18, 2026
Icingnoun(ice hockey) the act of shooting the puck from within your own defensive area the length of the rink beyond the opponent's goalverifiedMay 18, 2026
Icing SugarnounMWEfinely powdered sugar used to make icingverifiedMay 18, 2026
Icing the PucknounMWE(ice hockey) the act of shooting the puck from within your own defensive area the length of the rink beyond the opponent's goalverifiedMay 18, 2026
Iconnoun(computer science) a graphic symbol (usually a simple picture) that denotes a program or a command or a data file or a concept in a graphical user interfaceverifiedMay 18, 2026
Iconoclasmnounthe orientation of an iconoclastverifiedMay 18, 2026
Iconoclastnounsomeone who attacks cherished ideas or traditional institutionsverifiedMay 18, 2026
Iconographynounthe images and symbolic representations that are traditionally associated with a person or a subjectverifiedMay 18, 2026
Iconolatrynounthe worship of sacred imagesverifiedMay 18, 2026
Iconologynounthe branch of art history that studies visual images and their symbolic meaning (especially in social or political terms)verifiedMay 18, 2026
Iconoscopenounthe first practical television-camera for picture pickupverifiedMay 18, 2026