13-letter words containing l, e, n, f
- folk medicine — health practices arising from superstition, cultural traditions, or empirical use of native remedies, especially food substances.
- fontainebleau — a town in N France, SE of Paris: famous palace, long a favorite residence of French kings; extensive forest.
- fool's errand — a completely absurd, pointless, or useless errand.
- foolhardiness — recklessly or thoughtlessly bold; foolishly rash or venturesome.
- foramen ovale — the small, oval opening in the wall that separates the atria of the heart in a normal fetus: it allows blood to bypass the nonfunctioning fetal lungs until the time of birth when it gradually closes up
- foraminiferal — Of, pertaining to, or resembling the foraminifers; foraminiferous.
- fore clipping — a word formed by omitting the first part of the form from which it is derived.
- forefeelingly — by way of forefeeling
- foreknowledge — knowledge of something before it exists or happens; prescience: Did you have any foreknowledge of the scheme?
- forge welding — the welding of pieces of hot metal with pressure or blows.
- forgetfulness — apt to forget; that forgets: a forgetful person.
- fork luncheon — déjeuner à la fourchette.
- fort donelson — Fort Donelson.
- fortnightlies — Plural form of fortnightly.
- fortuneteller — a person who claims the ability to predict the future.
- fossil energy — heat energy released by burning fossil fuel
- foul-smelling — having a very unpleasant smell
- four-wheeling — traveling in a vehicle using four-wheel drive.
- fowling piece — a shotgun for shooting wildfowl.
- fractionalise — Alt form fractionalize.
- fractionalize — Divide (someone or something) into separate groups or parts.
- fragmentarily — consisting of or reduced to fragments; broken; disconnected; incomplete: fragmentary evidence; fragmentary remains.
- frank whittle — Sir Frank, 1907–96, English engineer and inventor.
- frankenthaler — Helen, 1928–2011, U.S. painter.
- franklin tree — a deciduous tree, Franklinia alatamaha, having large, white, fragrant flowers, one of the rarest trees in the world, once native only to Georgia and now known only in cultivation.
- fraser island — an island off the south-east coast of Queensland and the largest sand island in the world; contains rainforests, heathlands, and freshwater lakes; a national park (since 1976) and a World Heritage site (since 1992). Area: 1840 sq km (710 sq miles). Pop: 194 (2011)
- free climbing — climbing without using pitons, étriers, etc, as direct aids to ascent, but using ropes, belays, etc, at discretion for security
- free electron — an electron that is not attached to an atom or molecule and is free to respond to outside forces.
- free enthalpy — a thermodynamic property of a system equal to the difference between its enthalpy and the product of its temperature and its entropy. It is usually measured in joules
- free-floating — (of an emotional state) lacking an apparent cause, focus, or object; generalized: free-floating hostility.
- free-wheeling — operating in the manner of a freewheel.
- freight plane — an aeroplane used to transport goods
- frelinghuysen — Frederick Theodore, 1817–85, U.S. statesman.
- french letter — a condom.
- french polish — French polish is a type of varnish which is painted onto wood so that the wood has a hard shiny surface.
- french-polish — to finish or treat (a piece of furniture) with French polish.
- freudian slip — (in Freudian psychology) an inadvertent mistake in speech or writing that is thought to reveal a person's unconscious motives, wishes, or attitudes.
- friction pile — a pile depending on the friction of surrounding earth for support.
- friendly fire — Insurance. a fire deliberately set and remaining contained, as in a fireplace or boiler, from which any resulting loss cannot be claimed as an insurance liability (opposed to hostile fire).
- frighteningly — to make afraid or fearful; throw into a fright; terrify; scare.
- frightfulness — The quality of being frightful.
- frise aileron — an aircraft wing control surface designed with its leading edge extending forward of its axis of rotation so that when the aileron's trailing edge is raised the leading edge extends below the bottom surface of the wing.
- frivolousness — characterized by lack of seriousness or sense: frivolous conduct.
- fruitlessness — The quality of being fruitless.
- fuel injector — injector (def 2b).
- fuel-injected — (of an engine) having fuel injection.
- fulani empire — a powerful W African Muslim state that flourished in the 19th century in the area of present-day Nigeria.
- full laziness — (functional programming) A transformation, described by Wadsworth in 1971, which ensures that subexpressions in a function body which do not depend on the function's arguments are only evaluated once. E.g. each time the function f x = x + sqrt 4 is applied, (sqrt 4) will be evaluated. Since (sqrt 4) does not depend on x, we could transform this to: f x = x + sqrt4 sqrt4 = sqrt 4 We have replaced the dynamically created (sqrt 4) with a single shared constant which, in a graph reduction system, will be evaluated the first time it is needed and then updated with its value. See also fully lazy lambda lifting, let floating.
- full of beans — the edible nutritious seed of various plants of the legume family, especially of the genus Phaseolus.
- full sentence — any sentence the form of which exemplifies the most frequently used structural pattern of a particular language, as, in English, any sentence that contains a subject and a predicate; a sentence from which elliptical sentences may be derived by grammatical transformations.