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Intermittent renal replacement therapy

Intermittent renal replacement therapy (IRRT) is dialysis-based kidney support for acute kidney injury in critically ill patients, delivered in sessions of a few hours, typically three per week, until kidney function recovers.

Intermittent strabismus

Intermittent strabismus (ICD-11 9C80.3), chiefly intermittent exotropia, is an episodic eye misalignment controlled by fusion, appearing with fatigue, illness, or distance viewing; treated by observation, patching, over-minus lenses, or surgery.

Intermittent theta burst stimulation

Intermittent theta burst stimulation (iTBS) is a patterned form of repetitive transcranial magnetic stimulation, delivering bursts of three pulses in sessions lasting about 3 minutes.

Intermittent urethral catheterization

Intermittent urethral catheterization, also known as clean intermittent catheterization, drains the bladder with a catheter passed through the urethra several times a day, often by patients themselves.

Intermittent-motion film advance mechanism

Intermittent-motion film advance mechanism: the claw, Geneva (Maltese cross), or pin-driven device that steps motion-picture film one frame at a time past a camera or projector gate, synchronized with a rotary shutter, at 24 fps with 48 light interruptions per second.

Intermittently scanned continuous glucose monitoring

Intermittently scanned continuous glucose monitoring (isCGM), also called flash glucose monitoring, is a diabetes monitoring method in which a wearable sensor displays readings only when scanned.

Intermodal container

An intermodal container, also known as an ISO or freight container, is a standardized steel box that moves between ships, railcars, and trucks without handling the goods inside.

Intermodal container chassis

An intermodal container chassis is a skeletal steel semi-trailer built to carry a shipping container over the road, held by twist-locks; the short trucking move is called drayage.

Intermodal freight transport

Intermodal freight transport moves goods in one and the same loading unit using two or more transport modes like road, rail, or air. It is a type of multimodal transport.

Intermodal Surface Transportation Efficiency Act

The Intermodal Surface Transportation Efficiency Act (ISTEA) is a United States federal law signed by President George H. W. Bush in December 1991 that reorganized federal highway and transit programs.

Intermodulation

Intermodulation is the generation of signals at linear combinations of input frequencies in nonlinear devices such as amplifiers, a principal limit on dynamic range in radio systems.

Intermolecular force

Intermolecular forces, also called intermolecular interactions or nonbonded interactions, are attractive or repulsive forces between molecules not involving chemical bonds, including dispersion, dipole–dipole, and hydrogen bonds.

Intermountain Power Agency

The Intermountain Power Agency is a political subdivision of the State of Utah, organized in 1977, that owns the 1,800 MW Intermountain Power Project serving Utah and California.

Intermountain Power Plant

The Intermountain Power Plant is a power station near Delta, Utah, whose 1,800 MW coal units retired in 2025 for a gas-fired facility moving toward hydrogen.

Internacional de Bogotá

Internacional de Bogotá (Inter Bogotá), Colombian Primera A club in Bogotá, created in 2025-26 by rebranding La Equidad after Tylis-Porter Group's ~US$20M acquisition with celebrity investors including Ryan Reynolds.

Internal Affairs (film)

Internal Affairs is a 1990 American police thriller directed by Mike Figgis, written by Henry Bean, starring Richard Gere as corrupt LAPD officer Dennis Peck and Andy Garcia as investigator Raymond Avila; released January 12, 1990 by Paramount, grossing $25.8 million, and unrelated to Hong Kong's Infernal Affairs.

Internal affairs (law enforcement)

Internal affairs (also professional standards department) is the police unit that investigates misconduct, brutality, and corruption within its own agency and recommends discipline, operating under external oversight bodies such as the UK IOPC.

Internal audit

Internal audit, also called internal auditing, is an independent function within an organization that provides its board and management objective assurance and advice on risk, control, and governance.

Internal bleeding

Internal bleeding (hemorrhage) is blood loss inside the body from injured vessels or organs. Key facts: life-threatening within hours, shock signs, CT diagnosis, damage control resuscitation, embolization or surgery.

Internal capsule

The internal capsule (capsula interna) is a compact band of white matter in each cerebral hemisphere where a small stroke can paralyze the opposite side of the body.

Internal carotid artery

Internal carotid artery (ICA): terminal branch of the common carotid artery supplying the brain and eye; seven segments C1–C7, first cerebral artery to form embryologically (day 24), ends as anterior and middle cerebral arteries.

Internal combustion engine

An internal combustion engine (ICE) is a heat engine in which fuel burns inside the engine, pushing a piston that rotates a crankshaft to produce mechanical work.

Internal combustion engine cooling

Internal combustion engine cooling carries excess heat from an engine's cylinders, head, and block using liquid systems with radiators, thermostats, and pumps, or air cooling over fins.

Internal conflict in Myanmar

The internal conflict in Myanmar is an armed conflict between the military and ethnic armed organizations and anti-coup militias, running almost continuously since independence from Britain in 1948.

Internal conflict in Peru

Internal conflict in Peru (conflicto armado interno), 1980–2000: war between the Peruvian state and the Maoist Shining Path (Sendero Luminoso) and MRTA; about 69,280 dead, 54 percent attributed to Shining Path, per the Truth and Reconciliation Commission.

Internal consistency of the Bible

Internal consistency of the Bible is the question of whether its books agree in doctrine, narrative, and factual claims, posed differently by believers and scholars.

Internal control

Internal control is a process effected by an organization's board, management, and personnel to reasonably assure achievement of operations, reporting, and compliance objectives, defined by the COSO framework.

Internal conversion

Internal conversion is a nuclear decay process in which an excited nucleus transfers its energy directly to a bound electron, ejecting it instead of emitting a gamma ray.

Internal derangement of knee

Internal derangement of the knee (IDK), ICD-11 FA33 / ICD-10 M23, is a chronic knee disorder from meniscal tears or cruciate ligament rupture causing pain, instability, or locking; term coined by William Hey in 1803.

Internal displacement in Nigeria

Internal displacement in Nigeria, among the world's largest displacement crises, has uprooted about 3.7 million people, driven by the Boko Haram and ISWAP insurgencies, armed banditry, communal conflicts, and floods.