17-letter words containing r, f, a, c, t, o
- grooved fricative — a fricative, as (s), in which air is channeled through a groove along the center of the tongue.
- hydrogasification — a high-temperature, high-pressure process for producing liquid or gaseous fuels from fine particles of coal and hydrogen gas
- impersonification — (archaic) the act of impersonating; impersonation.
- improper fraction — a fraction having the numerator greater than the denominator.
- induction furnace — a type of electric furnace used for melting a charge of scrap by the heat produced by its own electrical resistance.
- integral function — an entire function.
- interconfessional — common to or occurring between churches having different confessions.
- internal conflict — psychological struggle within the mind of a literary or dramatic character, the resolution of which creates the plot's suspense: Hamlet's inaction is caused by internal conflict.
- john of lancaster — Duke of Bedford, 1389–1435, Bedford, John of Lancaster, Duke of.
- lance of courtesy — a lance having a blunt head to prevent serious injury by a jouster to an opponent.
- laplace transform — a map of a function, as a signal, defined especially for positive real values, as time greater than zero, into another domain where the function is represented as a sum of exponentials.
- law of reflection — the principle that when a ray of light, radar pulse, or the like, is reflected from a smooth surface the angle of reflection is equal to the angle of incidence, and the incident ray, the reflected ray, and the normal to the surface at the point of incidence all lie in the same plane.
- law of refraction — the principle that for a ray, radar pulse, or the like, that is incident on the interface of two media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocity of the ray in the first medium to the velocity in the second medium and the incident ray, refracted ray, and normal to the surface at the point of incidence all lie in the same plane.
- law of trichotomy — the property that for natural numbers a and b , either a is less than b , a equals b , or a is greater than b .
- magnetizing force — that part of the magnetic induction that is determined at any point in space by the current density and displacement current at that point independently of the magnetic or other physical properties of the surrounding medium. Symbol: H.
- make reference to — mention, allude to
- manufactured home — a prefabricated house, assembled in modular sections.
- master of science — a master's degree given usually in a specific branch of the natural sciences, mathematics, or technology.
- mayflower compact — an agreement to establish a government, entered into by the Pilgrims in the cabin of the Mayflower on November 11, 1620.
- merchant of death — a company, nation, or person that sells military arms on the international market, usually to the highest bidder and without scruple or regard for political ramifications.
- monarch butterfly — a large, deep-orange butterfly, Danaus plexippus, having black and white markings, the larvae of which feed on the leaves of milkweed.
- munitions factory — a factory where munitions are made
- non-certification — the act of certifying.
- non-confrontation — an act of confronting.
- odour of sanctity — sanctimoniousness
- of its own accord — If something happens of its own accord, it seems to happen by itself, without anyone making it happen.
- off-year election — (in the US) an election held in a year when a presidential election does not take place
- overhead camshaft — a camshaft in an automotive engine that is located in the cylinder head over the engine block rather than in the block. Abbreviation: OHC.
- pacific northwest — the region of North America lying north of the Columbia River and west of the Rockies
- pacific tree frog — a common terrestrial frog, Hyla regilla, of western North America, having a dark stripe along each side of the head.
- peacock butterfly — a European nymphalid butterfly, Inachis io, having reddish-brown wings each marked with a purple eyespot
- petrol filler cap — a small cover that goes over the hole in a vehicle into which you put petrol
- point of purchase — designating or in use at a retail outlet where an item can be purchased; point-of-sale: point-of-purchase displays to entice the buyer.
- point-of-purchase — designating or in use at a retail outlet where an item can be purchased; point-of-sale: point-of-purchase displays to entice the buyer.
- political refugee — a person who has fled from a homeland because of political persecution.
- port orford cedar — a tall tree, Chamaecyparis lawsoniana, of coastal Oregon, having flattened, scalelike foliage and wood highly valued as timber.
- pre-configuration — the relative disposition or arrangement of the parts or elements of a thing.
- pre-modifications — an act or instance of modifying.
- pre-qualification — a quality, accomplishment, etc., that fits a person for some function, office, or the like.
- prefect apostolic — the administrator, usually below the rank of bishop, in charge of a prefecture apostolic.
- probation officer — an officer who investigates and reports on the conduct of offenders who are free on probation.
- procurator fiscal — In the Scottish legal system, the procurator fiscal is a public official who puts people on trial.
- protection factor — a figure representing the relative degree of protection from the sun's rays afforded by a particular sunscreen
- protective tariff — a tariff levied on imports to protect the domestic economy rather than to raise revenue
- quadratic formula — the formula for determining theroots of a quadratic equation from its coefficients: .
- rational function — a function that can be written as the quotient of two polynomials with integral coefficients.
- reduction formula — a formula, such as sin (90° ± A) = cos A, expressing the values of a trigonometric function of any angle greater than 90° in terms of a function of an acute angle
- reflection nebula — a cloud of interstellar gas and dust that reflects the light of neighboring stars.
- refractory period — a short period after a nerve or muscle cell fires during which the cell cannot respond to additional stimulation.
- return of capital — A return of capital is a situation in which you receive back money that was previously invested.