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Itai-itai disease (イタイイタイ病)
Itai-itai disease (イタイイタイ病), literally "ouch-ouch" disease, is chronic cadmium poisoning from polluted river water that caused severe bone pain in Toyama, Japan, recognized as a pollution disease in 1968.
Itaipu Dam
Itaipu Dam, also known as Itaipú, is a 14,000 MW hydroelectric dam on the Paraná River at the Brazil–Paraguay border, the single plant that has generated the most energy in history since 1984.
Italgas
Italgas is an Italian gas distribution company headquartered in Milan that operates networks in Italy and Greece; after acquiring 2i Rete Gas in 2025, it became Europe's leading gas distribution operator.
Italian aircraft carrier Cavour
The Italian aircraft carrier Cavour, also known as ITS Cavour, is the flagship of the Italian Navy, delivered in 2008 and certified in 2021 to operate F-35B fighters.
Italian battleship Giulio Cesare
Giulio Cesare, later the Soviet battleship Novorossiysk, was an Italian Conte di Cavour-class battleship rebuilt from 1933 to 1937 that fought at Punta Stilo in 1940.
Italian battleship Roma (1940)
The Italian battleship Roma was a fast battleship of the Regia Marina, sunk by German Fritz X guided bombs on 9 September 1943 with the loss of 1,393 men.
Italian cruiser Trieste
Trieste was a fast, lightly armored Trento-class heavy cruiser of the Italian Regia Marina, sunk by USAAF B-17s at La Maddalena, Sardinia, on 10 April 1943; her hull was later scrapped in Spain.
Italian Line
Italian Line (Italiana di Navigazione) was a state-controlled Italian shipping company, formed at Genoa in 1932, that ran passenger services between Italy and the Americas.
Italian National Cybersecurity Agency
The Italian National Cybersecurity Agency (Agenzia per la Cybersicurezza Nazionale, ACN) is Italy's national cybersecurity authority, created by law in 2021 to coordinate public bodies and protect state networks.
Italian Space Agency
The Italian Space Agency, also known as Agenzia Spaziale Italiana, is Italy's national space agency. Founded in 1988, it coordinates and funds national space initiatives from Rome.
Italian training ship Amerigo Vespucci
The Amerigo Vespucci is a full-rigged sailing training ship of the Italian Navy, launched in 1931 to train Naval Academy cadets and still in service.
Italianate architecture
Italianate architecture, also called the Italian Villa or Victorian Italianate style, is a 19th-century revival of Italian villa forms, dominant in America from the 1850s to the 1880s and marked by low-pitched roofs with bracketed eaves.
Italic type
Italic type is a cursive style of typeface with letters slanting to the right, derived from Renaissance handwriting and first cut by Francesco Griffo for Aldus Manutius around 1500.
Italo (train)
Italo is the brand name of the high-speed trains operated by Nuovo Trasporto Viaggiatori, Italy's first private high-speed rail operator, which began competing with Trenitalia in 2012.
Italy–Montenegro interconnector
The Italy–Montenegro interconnector, known as the MONITA project, is a 445 km HVDC submarine power link between Cepagatti, Italy, and Lastva, Montenegro, inaugurated in 2019 with 600 MW capacity.
Itanium
Itanium is a family of 64-bit server microprocessors developed jointly by Intel and Hewlett-Packard around the EPIC architecture, launched in 2001 and last shipped in 2021.
Itapu Field
Itapu Field is a Brazilian pre-salt oil field in the Santos Basin, about 200 km off Rio de Janeiro, operated by Petrobras and producing through the FPSO P-71 since December 2022.
Itau Gas Field
The Itau Gas Field (Itaú) is an onshore gas and condensate field in Bolivia's Tarija Department, discovered in 1999 by Total and producing since February 2011.
ITC Holdings
ITC Holdings is an American independent electricity transmission company, the largest in the United States, founded in 2003 and operating about 16,000 circuit miles of lines across 8 states as a subsidiary of Canada's Fortis Inc.
ITD Cementation
ITD Cementation, an Indian EPC contractor founded in 1978 and renamed Cemindia Projects Limited in 2025, builds foundations, metro and urban infrastructure, ports, and marine structures from its Mumbai headquarters.
ITER blanket
The ITER blanket is the system of modular panels lining the ITER vacuum vessel that absorbs heat and neutrons from the plasma and shields the vessel and magnets.
ITER divertor
The ITER divertor is the component at the bottom of the ITER tokamak's vacuum vessel that removes heat and helium ash from the plasma and shields surrounding walls, sustaining heat loads of 10 MW/m².
ITER remote handling
ITER remote handling is the set of robotic transporters, manipulators, and tooling planned for the ITER tokamak, required because neutron activation will make hands-on maintenance impossible once deuterium-tritium operation begins.
ITER-like wall
The ITER-like wall (ILW) is the beryllium and tungsten plasma-facing first wall of the JET tokamak at Culham, UK, matching ITER's materials. Installed in 2011, it replaced JET's carbon wall.
Iterated amplification
Iterated amplification, also called iterated distillation and amplification, is a proposed AI oversight method in which agents amplify themselves by decomposing tasks, then are distilled back into single agents.
Iterated greedy
Iterated greedy is a stochastic local search metaheuristic that repeatedly destroys part of a candidate solution and greedily reconstructs it, formalized by Ruiz and Stützle in 2007.
Iterated linear quadratic Gaussian control
Iterated linear quadratic Gaussian control (iLQG) is an iterative method for computing locally optimal feedback control of nonlinear stochastic systems, introduced by Emanuel Todorov and Weiwei Li in 2005.
Iterated local search
Iterated local search (ILS) is a metaheuristic optimization method that perturbs a solution, runs local search, and accepts or rejects the result, escaping local optima on hard problems.
Iterative and incremental development
Iterative and incremental development builds software through repeated cycles and additive portions of functionality, rather than delivering the whole system in one pass, and underlies agile methods like Scrum.
Iterative closest point
The iterative closest point (ICP) algorithm aligns two point clouds by repeatedly matching closest points and refining the rigid transform, introduced by Besl and McKay in 1992.