FIR (English, noun)
expansion: FIR (countable and uncountable, plural FIRs)
Senses:
topics: aeronautics
aerospace
aviation
business
engineering
natural-sciences
physical-sciences
glosses: Initialism of flight information region; a specified region of airspace in which a flight information service (FIS) and an alerting service (ALRS) are provided.
tags: abbreviation
alt-of
countable
initialism
uncountable
topics: government
law-enforcement
glosses: Initialism of first information report.
tags: Singapore
South-Asia
abbreviation
alt-of
countable
initialism
uncountable
glosses: Abbreviation of far infrared or far infrared radiation.
tags: abbreviation
alt-of
uncountable
Forms:
form: FIRs
tags: plural