17-letter words containing f, u, l, c, r, a
- 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.
- 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-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-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.
- sexual preference — Someone's sexual preference is the same as their sexual orientation.
- silk manufacturer — a person or business that is involved in the manufacture of silk thread and fabric
- spatial frequency — the measure of fine detail in an optical image in terms of cycles per millimetre
- the final curtain — the closing of the curtain at the end of the action of a play
- 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
- walleye surfperch — a common black and silvery surfperch (Hyperprosopon argenteum) found off the coast of California
- wave-cut platform — a flat surface at the base of a cliff formed by erosion by waves