17-letter words containing f, u, l, c, o
- lance of courtesy — a lance having a blunt head to prevent serious injury by a jouster to an opponent.
- line of induction — (formerly) a line of force in a magnetic field.
- luminous efficacy — the quotient of the luminous flux of a radiation and its corresponding radiant flux
- molecular formula — a chemical formula that indicates the kinds of atoms and the number of each kind in a molecule of a compound.
- monarch butterfly — a large, deep-orange butterfly, Danaus plexippus, having black and white markings, the larvae of which feed on the leaves of milkweed.
- nuclear-free zone — any area in which nuclear weapons, power plants, or materials are not allowed.
- peacock butterfly — a European nymphalid butterfly, Inachis io, having reddish-brown wings each marked with a purple eyespot
- pincushion flower — scabious2 (def 1).
- political refugee — a person who has fled from a homeland because of political persecution.
- pre-qualification — a quality, accomplishment, etc., that fits a person for some function, office, or the like.
- procurator fiscal — In the Scottish legal system, the procurator fiscal is a public official who puts people on trial.
- 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.
- 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.
- refuse collection — the collection of rubbish and waste, usually in a rubbish or refuse truck, before final disposal
- 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.
- return of capital — A return of capital is a situation in which you receive back money that was previously invested.
- road-fund licence — a licence showing that the tax payable in respect of a motor vehicle has been paid
- self-constituting — to compose; form: mortar constituted of lime and sand.
- self-introduction — the act of introducing or the state of being introduced.
- self-purification — a natural process of purifying, as the ability of a body of water to rid itself of pollutants.
- self-renunciation — renunciation of one's own will, interests, etc.
- self-reproduction — the act or process of reproducing.
- sulfonyl chloride — a colorless liquid, SO 2 Cl 2 , having a very pungent odor and corrosive to the skin and mucous membranes: used as a chlorinating or sulfonating agent.
- thiosulfuric acid — an acid, H 2 S 2 O 3 , that may be regarded as sulfuric acid with one oxygen atom replaced by sulfur.
- unclassified road — a road that has not been given a grade because it is of a basic standard
- uncomfortableness — causing discomfort or distress; painful; irritating.
- unofficial strike — a strike that is not approved by the strikers' trade union
- unselfconsciously — in an unselfconscious manner
- wave-cut platform — a flat surface at the base of a cliff formed by erosion by waves