13-letter words containing r, l, f
- electric flux — the product of the electric displacement and the area across which it is displaced in an electric field
- electroformed — Produced, or modified by electroforming.
- enfield rifle — a breech-loading bolt-action magazine rifle, usually .303 calibre, used by the British army until World War II and by other countries
- enrolment fee — the amount of money payable when you enrol on a course, at a university, etc
- express rifle — a high-velocity hunting rifle for big game shooting
- extrafamilial — Outside a family.
- f.w. de klerk — Frederik Willem, born 1936, South African political leader: president 1989–94; Nobel Peace Prize 1993.
- fabric filter — A fabric filter is a type of filter in which solids are removed from a gas by passing it though a fabric.
- fabricability — able to be formed or shaped; capable of being constructed or manufactured.
- factory floor — The factory floor refers to the workers in a factory, as opposed to the managers. It can also refer to the area where they work.
- faculty board — the governing body of a faculty
- fairly-traded — bought from the producer at a guaranteed price
- fairy swallow — a variety of domestic fancy pigeon having blue-and-white plumage and heavily muffed feet
- fairy-slipper — Calypso (def 2).
- false bulrush — a tall reedlike marsh plant, Typha latifolia, with straplike leaves and flowers in long brown sausage-shaped spikes: family Typhaceae
- false colours — a flag to which one is not entitled, flown esp in order to deceive
- false horizon — a line or plane that simulates the horizon, used in altitude-measuring devices or the like.
- false saffron — a red dye used for cotton and for colouring foods and cosmetics, or a drug obtained from the florets of this plant
- false vampire — any large, carnivorous bat of the families Megadermatidae and Phyllostomatidae, of Africa, Asia, and Australia, erroneously reputed to suck the blood of animals and humans.
- false-hearted — having a false or treacherous heart; deceitful; perfidious.
- familiarising — Present participle of familiarise.
- familiarities — Plural form of familiarity.
- familiarizing — Present participle of familiarize.
- family circle — the closely related members of a family as a group.
- family credit — (formerly, in Britain) a means-tested allowance paid to low-earning families with one or more dependent children and one or both parents in work: replaced by Working Families' Tax Credit in 1999
- family doctor — a general practitioner.
- family friend — intimate acquaintance of one's family
- fanfold paper — continuous paper perforated at regular intervals, as used in a dot-matrix printer
- fantin-latour — (Ignace) Henri (Joseph Théodore) [ee-nyas ahn-ree zhaw-zef tey-aw-dawr] /iˈnyas ɑ̃ˈri ʒɔˈzɛf teɪ ɔˈdɔr/ (Show IPA), 1836–1904, French painter.
- fare-you-well — a state of perfection: The meal was done to a fare-thee-well.
- farkleberries — Plural form of farkleberry.
- farm labourer — a person engaged in physical work on a farm
- farm-to-table — noting or relating to fresh, locally sourced food sold to local consumers or restaurants: farm-to-table meats and seasonal vegetables.
- farmer's lung — a lung disorder caused by inhalation of moldy hay dust, marked by shortness of breath, dry cough, and weight loss.
- faroe islands — islands in Atlantic Ocean
- fast follower — a company that is quick to pick up good new ideas from other companies
- fast telegram — a type of domestic telegram sent at full rate with a minimum charge for 10 words or less and accepted for immediate delivery.
- fat electrons — (electronics, humour) Old-time hacker David Cargill's theory on the cause of computer glitches. Your typical electricity company draws its line current out of the big generators with a pair of coil taps located near the top of the dynamo. When the normal tap brushes get dirty, they take them off line to clean them up, and use special auxiliary taps on the *bottom* of the coil. Now, this is a problem, because when they do that they get not ordinary or "thin" electrons, but the fat sloppy electrons that are heavier and so settle to the bottom of the generator. These flow down ordinary wires just fine, but when they have to turn a sharp corner (as in an integrated-circuit via), they're apt to get stuck. This is what causes computer glitches. Compare bogon, magic smoke.
- father lasher — a large sea scorpion, Myoxocephalus scorpius, occurring in British and European coastal waters
- father-in-law — the father of one's husband or wife.
- fault breccia — angular rock fragments produced by fracture and grinding during faulting and distributed within or adjacent to the fault plane.
- fault current — A fault current is a current that results from a fault.
- favorableness — Alternative spelling of favourableness.
- favrile glass — a type of iridescent glass developed by L.C. Tiffany
- featurelessly — In a featureless way; without features.
- federal court — a court of a federal government, especially one established under the Constitution of the United States.
- feeder school — a junior school whose pupils go to a specific secondary school
- fellow member — someone who is a member of the same organization or society as you
- fellow worker — someone you work with
- felony murder — a killing treated as a murder because, though unintended, it occurred during the commission or attempted commission of a felony, as robbery.