17-letter words containing u, p, r, o, a
- thermal pollution — a rise in the temperature of rivers or lakes that is injurious to water-dwelling life and is caused by the disposal of heated industrial waste water or water from the cooling towers of nuclear power plants.
- to keep your head — If you keep your head, you remain calm in a difficult situation. If you lose your head, you panic or do not remain calm in a difficult situation.
- tolpuddle martyrs — six farm workers sentenced to transportation for seven years in 1834 for administering an unlawful oath to form a trade union in the village of Tolpuddle, Dorset
- topological group — a set that is a group and a topological space and for which the group operation and the map of an element to its inverse are continuous functions.
- trapdoor function — a function defined from data by means of a mathematical procedure in such a way that it is easy to obtain the function when the data are known, but when the procedure and data are not known it becomes very difficult to determine the original data: used in cryptography, where the data are the characters of the plain text, or message, and the trapdoor function is the cryptogram.
- tropical aquarium — an aquarium designed for the maintenance and breeding of tropical fish and kept at a suitably warm temperature.
- turbosupercharger — (formerly) a turbocharger.
- ultrametamorphism — metamorphism during which the temperature of a rock exceeds its melting point.
- unconformity trap — An unconformity trap is a hydrocarbon trap where the closure is made by an unconformity (= a formation of rock layers which represents a gap in the geological record).
- uncooperativeness — working or acting together willingly for a common purpose or benefit.
- undercompensation — to compensate or pay less than is fair, customary, or expected.
- unemployment rate — percentage of population without jobs
- unify corporation — (company) Developers of the Unify relational database. At one time, before Sybase, they were a competitor of Oracle, et al.
- unipalm group plc — (company) A company floated in March 1994.
- unprofessionalism — not professional; not pertaining to or characteristic of a profession.
- unproportionately — proportioned; being in due proportion; proportional.
- upper paleolithic — See under Paleolithic.
- urban development — the development or improvement of an urban area by building
- urban exploration — a recreational activity in which people explore derelict urban structures such as abandoned sewers or underground railways or attempt to access areas which are closed to the public such as the roofs of skyscrapers
- vacuum aspiration — menstrual extraction.
- waiver of premium — a provision in a policy establishing specific conditions under which the policy will be kept in force without the policyholder's being required to continue to pay premiums.
- warehouse receipt — a receipt for goods placed in a warehouse.
- wave-cut platform — a flat surface at the base of a cliff formed by erosion by waves
- wearable computer — a small computer that is worn or carried on the body; a wearable computing device: a wrist-worn wearable computer with a head-mounted display.
- weston-super-mare — a town and resort in SW England, in North Somerset unitary authority, Somerset, on the Bristol Channel. Pop: 78 044 (2001)
- youth programming — the creation and scheduling of television programmes specifically aimed at young people
- zonal pelargonium — a pelargonium whose leaves are marked with concentric circles of a different colour to the rest of the leaf