family Raphidiidae
— Noun
– English
～ a family of arthropods of the suborder Megaloptera, including snakeflies
flowering raspberry
— Noun
– English
～ shrubby raspberry of eastern North America having showy rose to purplish flowers and red or orange thimble-shaped fruit
first-rate
— Adjective
– English
～ of the highest quality; "an ace reporter"; "a crack shot"; "a first-rate golfer"; "a super party"; "played top-notch tennis"; "an athlete in tiptop condition"; "she is absolutely tops"
fatality rate
— Noun
– English
～ the ratio of deaths in an area to the population of that area; expressed per 1000 per year
fertility rate
— Noun
– English
～ the ratio of live births in an area to the population of that area; expressed per 1000 population per year
freight rate
— Noun
– English
～ the charge for transporting something by common carrier; "we pay the freight"; "the freight rate is usually cheaper"
fuel consumption rate
— Noun
– English
～ the ratio of the number of miles traveled to the number of gallons of gasoline burned
flow rate
— Noun
– English
～ the amount of fluid that flows in a given time
first-rater
— Noun
– English
～ one who is first-rate
focal ratio
— Noun
– English
～ the ratio of the focal length to the diameter of a (camera) lens system
field ration
— Noun
– English
～ rations issued for United States troops in the field
Fatah-RC
— Noun
– English
～ a Palestinian international terrorist organization that split from the PLO in 1974; has conducted terrorist attacks in 20 countries; "in the 1980s the Fatah-RC was considered the most dangerous and murderous Palestinian terror group"
fast reactor
— Noun
– English
～ nuclear reactor in which nuclear fissions are caused by fast neutrons because little or no moderator is used
fusion reactor
— Noun
– English
～ a nuclear reactor that uses controlled nuclear fusion to generate energy
first reading
— Noun
– English
～ the first presentation of a bill in a legislature
favourable reception
— Noun
– English
～ acceptance as satisfactory; "he bought it on approval"
favorable reception
— Noun
– English
～ acceptance as satisfactory; "he bought it on approval"
face recognition
— Noun
– English
～ the visual perception of familiar faces
face recognition
— Noun
– English
～ biometric identification by scanning a person's face and matching it against a library of known faces; "they used face recognition to spot known terrorists"