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17-letter words containing f, o, c

  • protective tariff — a tariff levied on imports to protect the domestic economy rather than to raise revenue
  • pseudo-scientific — any of various methods, theories, or systems, as astrology, psychokinesis, or clairvoyance, considered as having no scientific basis.
  • publicity officer — a person who is employed to get publicity for an organization, or to provide information about it
  • purple of cassius — a purple pigment precipitated as a sol by the interaction of gold chloride and a solution of stannic acid and stannous chloride: used chiefly in the manufacture of ruby glass, ceramic glazes, and enamels.
  • pyrosulfuric acid — a strong, crystalline acid, H2S2O7, prepared commercially as a heavy, oily, fuming liquid: used in making explosives and dyes, as a sulfating agent, etc.
  • 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.
  • receding forehead — a forehead which slopes backwards
  • recruiting office — an office where staff are recruited, esp by the military
  • recursion formula — a formula for determining the next term of a sequence from one or more of the preceding terms.
  • 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.
  • refuse collection — the collection of rubbish and waste, usually in a rubbish or refuse truck, before final disposal
  • refuse destructor — someone responsible for or something that destructs or destroys rubbish and waste
  • registered office — official business address
  • republic of china — People's Republic of, a country in E Asia. 3,691,502 sq. mi. (9,560,990 sq. km). Capital: Beijing.
  • republic of korea — a former country in E Asia, on a peninsula SE of Manchuria and between the Sea of Japan and the Yellow Sea: a kingdom prior to 1910; under Japanese rule 1910–45; now divided at 38° N into North Korea and South Korea. Compare Korean War.
  • republic of palau — a republic comprising a group of islands in the W Pacific, in the W Caroline Islands; administratively part of the UN Trust Territory of the Pacific Islands 1947–87; entered into an agreement of free association with the US (1980); became fully independent in 1994. Chief island: Babelthuap. Capital: Ngerulmud on Babelthuap (functions moved from Koror in 2006). Pop: 21 108 (2013 est). Area: 476 sq km (184 sq miles)
  • republic of yemen — Republic of, a country in S Arabia, formed in 1990 by the merger of the Yemen Arab Republic and the People's Democratic Republic of Yemen. 207,000 sq. mi. (536,130 sq. km). Capital: Aden.
  • republic-of-china — People's Republic of, a country in E Asia. 3,691,502 sq. mi. (9,560,990 sq. km). Capital: Beijing.
  • resurrection fern — a drought-resistant, evergreen, epiphytic fern, Polypodium polypodioides, of subtropical to tropical America, appearing to be a ball of coiled, dead leaves in the dry season but reviving with moisture.
  • return of capital — A return of capital is a situation in which you receive back money that was previously invested.
  • returning officer — a public official appointed to conduct and preside at an election.
  • rheumatoid factor — an antibody that is found in the blood of many persons afflicted with rheumatoid arthritis and that reacts against globulins in the blood.
  • road-fund licence — a licence showing that the tax payable in respect of a motor vehicle has been paid
  • rock of gibraltar — a British crown colony comprising a fortress and seaport located on a narrow promontory near the S tip of Spain. 1.875 sq. mi. (5 sq. km).
  • rotation of crops — a system of rotating in a fixed order the kinds of crops, as grain or grass, grown in the same field, to maintain soil fertility
  • rush one's fences — to proceed with precipitate haste
  • rush-hour traffic — the large number of vehicles that move along roads, travelling to or from work at the beginning and end of the working day
  • sacrifice paddock — a grassed area allowed to be grazed completely, to be cultivated and resown later
  • sacrificial anode — Chemistry. an anode that is attached to a metal object subject to electrolysis and is decomposed instead of the object.
  • safety inspection — an inspection of a place carried out to ensure that it is safe and not dangerous
  • safety precaution — a precaution that is taken in order to ensure that something is safe and not dangerous
  • san francisco bay — a bay in W California: the harbor of San Francisco; connected with the Pacific by the Golden Gate strait. 50 miles (80 km) long; 3–12 miles (5–19 km) wide.
  • scarlet firethorn — a Eurasian evergreen, thorny shrub, Pyracantha coccinea, of the rose family, having white, hairy flower clusters and bright red berries.
  • scientific method — a method of research in which a problem is identified, relevant data are gathered, a hypothesis is formulated from these data, and the hypothesis is empirically tested.
  • scientific theory — a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation: the scientific theory of evolution.
  • self-acknowledged — widely recognized; generally accepted: an acknowledged authority on Chinese art.
  • self-appreciation — gratitude; thankful recognition: They showed their appreciation by giving him a gold watch.
  • self-commendation — the act of commending; recommendation; praise: commendation for a job well done.
  • self-condemnation — the act of condemning.
  • self-conditioning — Also called operant conditioning, instrumental conditioning. a process of changing behavior by rewarding or punishing a subject each time an action is performed until the subject associates the action with pleasure or distress.
  • self-confirmation — the act of confirming.
  • self-consecration — the act of setting oneself to a task or vocation without ordination by others or by a religious body.
  • self-conservation — the act of conserving; prevention of injury, decay, waste, or loss; preservation: conservation of wildlife; conservation of human rights.
  • self-constituting — to compose; form: mortar constituted of lime and sand.
  • self-dissociation — an act or instance of dissociating.
  • self-emancipation — the act of emancipating.
  • self-incompatible — not capable of self-pollination.
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