ISR
Abbreviation with 3 meanings
| Stands for | Intelligence, surveillance and reconnaissance |
|---|---|
| Meanings | 3 |
| Categories | Military, Medical, Technology & Computing |
ISR has three meanings. The most common are Intelligence, surveillance and reconnaissance (military term) and In-stent restenosis (cardiology); it can also stand for Incremental static regeneration.
Meanings of ISR at a glance
| # | ISR stands for | Context |
|---|---|---|
| 1 | Intelligence, surveillance and reconnaissance | Military › Military Term |
| 2 | In-stent restenosis | Medical › Cardiology |
| 3 | Incremental static regeneration | Technology & Computing › Internet & Web |
1. Intelligence, surveillance and reconnaissance
Military · Military Term Abbreviations
Integrated collection of information about adversaries and the environment by aircraft, drones, satellites, ground teams and sensors, and its processing into usable intelligence. It feeds targeting and planning at every level.
Example: ISR drones watched the compound for days before the raid.
Demand for ISR soared during the wars in Iraq and Afghanistan, driving the expansion of drone fleets such as the MQ-1 Predator and MQ-9 Reaper. Commanders often describe ISR as a scarce asset allocated by priority.
2. In-stent restenosis
Medical · Cardiology Abbreviations
Gradual renarrowing inside a previously placed stent, caused mainly by scar tissue growth (neointimal hyperplasia) and sometimes by new atherosclerosis. It usually appears within months of bare-metal stenting and is much less common with drug-eluting stents.
Example: Recurrent angina 8 months after PCI; angiography shows focal ISR treated with a drug-coated balloon.
Defined angiographically as narrowing of 50 percent or more within the stent or 5 mm beyond its edges. Unlike stent thrombosis, a sudden clot that causes a heart attack, restenosis develops slowly and typically brings back angina. Treatment options include another drug-eluting stent, a drug-coated balloon or bypass surgery.
3. Incremental static regeneration
Technology & Computing · Internet & Web Abbreviations
A Next.js feature that rebuilds individual static pages in the background after a set time or on demand, so a site keeps the speed of static HTML while picking up content changes without a full rebuild.
Example: Product pages use ISR with a 60-second revalidate, so price changes appear within a minute.
Introduced in Next.js 9.5 in 2020. Visitors receive the cached page while a fresh version is generated, a pattern similar to the HTTP stale-while-revalidate cache directive. Other frameworks and hosting platforms offer comparable features under different names.
Related abbreviations
More military term abbreviations
- IMINT – Imagery intelligence
- IO – Information operations
- IPB – Intelligence preparation of the battlefield
- IRR – Individual Ready Reserve
- JAG – Judge Advocate General
- JTAC – Joint terminal attack controller
- JWICS – Joint Worldwide Intelligence Communications System
- KIA – Killed in action
See all 248 military term abbreviations →
More cardiology abbreviations
- IE – Infective endocarditis
- iFR – Instantaneous wave-free ratio
- IHD – Ischemic heart disease
- ILR – Implantable loop recorder
- IVC – Inferior vena cava
- IVCD – Intraventricular conduction delay
- IVUS – Intravascular ultrasound
- JVD – Jugular venous distension
See all 229 cardiology abbreviations →
This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.