(n) :
(chiefly countable) A conifer of the genus Abies.
(n) :
(chiefly countable) Any pinaceous conifer of related genera, especially a Douglas fir (Pseudotsuga) or a Scots pine (Pinus sylvestris).
(n) :
(uncountable) Wood of such trees.
(n) :
(South Asia, Singapore, law enforcement) Initialism of first information report.
(n) :
(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. [(aviation) A specified region of airspace in which a flight information service and an alerting service are provided.]
(adj) :
(signal processing, of a filter) Initialism of finite impulse response; that has impulse response (or response to any finite length input) of finite duration.
(n) :
(chiefly countable) A conifer of the genus Abies.
(n) :
(chiefly countable) Any pinaceous conifer of related genera, especially a Douglas fir (Pseudotsuga) or a Scots pine (Pinus sylvestris).
(n) :
(uncountable) Wood of such trees.
(n) :
(South Asia, Singapore, law enforcement) Initialism of first information report.
(n) :
(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. [(aviation) A specified region of airspace in which a flight information service and an alerting service are provided.]
(adj) :
(signal processing, of a filter) Initialism of finite impulse response; that has impulse response (or response to any finite length input) of finite duration.