18-letter words containing r, u, m, e, l, i
- presumption of law — a presumption based upon a policy of law or a general rule and not upon the facts or evidence in an individual case.
- principal argument — the radian measure of the argument between −π and π of a complex number. Compare argument (def 8c).
- pulmonary embolism — the blockage of a pulmonary artery, often by a blood clot, that stops the flow of blood to the lungs and which can result in death if untreated
- pulmonic airstream — a current of lung air set in motion by the respiratory muscles in the production of speech.
- pyromucic aldehyde — furfural.
- quartz-iodine lamp — a type of tungsten-halogen lamp containing small amounts of iodine and having a quartz envelope, operating at high temperature and producing an intense light for use in car headlamps, etc
- real-time computer — a computer that can process data or information almost immediately
- residual magnetism — remanence.
- rheims-douay bible — Douay Bible.
- run length limited — (storage) (RLL) The most popular scheme for encoding data on magnetic disks. RLL packs up to 50% more data on a disk than MFM. Groups of bits are mapped to specific patterns of flux. The density of flux transitions is limited by the spatial resolution of the disk and frequency response of the head and electronics. However, transitions must be close enough to allow reliable clock recovery. RLL implementations vary according to the minimum and maximum allowed numbers of transition cells between transitions. For example, the most common variant today, RLL 1,7, can have a transition in every other cell and must have at least one transition every seven cells. The exact mapping from bits to transitions is essentially arbitrary. Other schemes include GCR, FM, Modified Frequency Modulation (MFM). See also: PRML.
- running martingale — martingale (def 2).
- sampling frequency — sample rate
- sault sainte marie — the rapids of the St. Marys River, between NE Michigan and Ontario, Canada.
- selenium rectifier — a rectifier consisting of laminated plates of metal, usually iron, that have been coated with selenium on one side, with rectification taking place because the flow of electrons from the conductive metal to the selenium occurs more readily than the flow in the opposite direction.
- semicircular canal — any of the three curved tubular canals in the labyrinth of the ear, associated with the sense of equilibrium.
- simple enumeration — a procedure for arriving at empirical generalizations by haphazard accumulation of positive instances.
- spectrofluorimeter — an instrument in which the spectrum of secondarily emitted fluorescent light is used to identify chemical compounds.
- subatomic particle — physics:
- super giant slalom — a slalom race in which the course is longer and has more widely spaced gates than in a giant slalom.
- super middleweight — a boxer weighing up to 168 pounds (75.6 kg), between middleweight and light heavyweight.
- survival mechanism — something you or your body does automatically, in order to survive in a dangerous or unpleasant situation
- temporal summation — the act or process of summing.
- the masurian lakes — a group of lakes in Masuria in NE Poland: scene of Russian defeats by the Germans (1914, 1915) during World War I
- the-master-builder — a play (1892) by Ibsen.
- thermoluminescence — phosphorescence produced by the heating of a substance.
- to close your mind — If you close your mind to something, you deliberately do not think about it or pay attention to it.
- tristimulus values — three values that together are used to describe a colour and are the amounts of three reference colours that can be mixed to give the same visual sensation as the colour considered
- upper middle class — wealthy, highly-educated people
- victor emmanuel ii — 1820–78, king of Sardinia 1849–78; first king of Italy 1861–78.
- white trumpet lily — a lily, Lilium longiflorum, of Japan, having fragrant, pure white, trumpet-shaped flowers nearly 7 inches (18 cm) in length.
- working men's club — A working men's club is a place where working people, especially men, can go to relax, drink alcoholic drinks, and sometimes watch live entertainment.
- wrangell mountains — a mountain range in SE Alaska, extending into the Yukon, Canada. Highest peak: Mount Blackburn, 5037 m (16 523 ft)