Meaning of ISR | Babel Free

Definitions

1. Initialism of Inuvialuit Settlement Region.
   abbreviation, alt-of, initialism
2. Initialism of interrupt service routine.
   abbreviation, alt-of, countable, initialism
3. Initialism of intelligence, surveillance, reconnaissance (“spycraft”).
   abbreviation, alt-of, initialism, uncountable
4. Initialism of interstate route.
   US, abbreviation, alt-of, countable, initialism, obsolete, uncountable

Examples

“This function registers an interrupt service routine (ISR) with the kernel”

CEFR level