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FIR. In DICTIOUS you will not only get to know all the dictionary meanings for the word
FIR, but we will also tell you about its etymology, its characteristics and you will know how to say
FIR in singular and plural. Everything you need to know about the word
FIR you have here. The definition of the word
FIR will help you to be more precise and correct when speaking or writing your texts. Knowing the definition of
FIR, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
English
Adjective
FIR (not comparable)
- (signal processing, of a filter) Initialism of finite impulse response; that has impulse response (or response to any finite length input) of finite duration.
Noun
FIR (countable and uncountable, plural FIRs)
- (aviation) Initialism of flight information region; a specified region of airspace in which a flight information service (FIS) and an alerting service (ALRS) are provided
- (South Asia, Singapore, law enforcement) Initialism of first information report.
- (uncountable) Abbreviation of far infrared or far infrared radiation.
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