19-letter words containing r, u, f, i, s
- idea of pure reason — any of the three undemonstrable entities (a personal soul, a cosmos, and a supreme being) implicit in the fact of a subject and an object of knowledge, and in the need for some principle uniting them.
- isidorus of miletus — flourished 6th century a.d, Byzantine engineer. He was one of the architects of Hagia Sophia; (originally an Orthodox cathedral and currently a museum in Istanbul, Turkey).
- jacques montgolfier — Jacques Étienne [zhahk ey-tyen] /ʒɑk eɪˈtyɛn/ (Show IPA), 1745–99, and his brother Joseph Michel [zhaw-zef mee-shel] /ʒɔˈzɛf miˈʃɛl/ (Show IPA) 1740–1810, French aeronauts: inventors of the first practical balloon 1783.
- juan de fuca strait — strait between Vancouver Island and NW Wash.: c. 100 mi (161 km) long
- life-support system — A life-support system is the same as a life-support machine.
- limit of resolution — the capacity of an optical system to resolve point objects as separate images.
- means of production — resources: equipment, workers
- membership function — fuzzy subset
- modulus of rigidity — shear modulus.
- neats vs. scruffies — (artificial intelligence, jargon) The label used to refer to one of the continuing holy wars in artificial intelligence research. This conflict tangles together two separate issues. One is the relationship between human reasoning and AI; "neats" tend to try to build systems that "reason" in some way identifiably similar to the way humans report themselves as doing, while "scruffies" profess not to care whether an algorithm resembles human reasoning in the least as long as it works. More importantly, neats tend to believe that logic is king, while scruffies favour looser, more ad-hoc methods driven by empirical knowledge. To a neat, scruffy methods appear promiscuous, successful only by accident and not productive of insights about how intelligence actually works; to a scruffy, neat methods appear to be hung up on formalism and irrelevant to the hard-to-capture "common sense" of living intelligences.
- parainfluenza virus — any of a group of viruses that cause respiratory infections with influenza-like symptoms, esp in children
- performance figures — the statistics that indicate how well or badly a company or organization has performed
- peroxysulfuric acid — persulfuric acid (def 1).
- persian gulf states — group of Arab sheikdoms along the Persian Gulf: Kuwait, Bahrain, Qatar, & United Arab Emirates
- pillars of hercules — the two promontories at the E end of the Strait of Gibraltar: the Rock of Gibraltar on the European side and the Jebel Musa on the African side; according to legend, formed by Hercules
- presumption of fact — a presumption based on experience or knowledge of the relationship between a known fact and a fact inferred from it.
- profitability study — a study of how much profit a company, organization, etc, makes or how profitable it is
- pseudo-professional — following an occupation as a means of livelihood or for gain: a professional builder.
- put a figure on sth — When you put a figure on an amount, you say exactly how much it is.
- put one's finger on — any of the terminal members of the hand, especially one other than the thumb.
- radius of curvature — the absolute value of the reciprocal of the curvature at a point on a curve.
- reflux oesophagitis — inflammation of the gullet caused by regurgitation of stomach acids, producing heartburn: may be associated with a hiatus hernia
- republic of letters — the collective body of literary people.
- respiratory failure — a condition in which the respiratory system is unable to provide an adequate supply of oxygen or to remove carbon dioxide efficiently
- ruffini's corpuscle — an end organ of certain sensory neurons that branches out parallel to the skin and responds to steady pressure.
- saccharofarinaceous — pertaining to or consisting of sugar and meal.
- sea of tranquillity — Astronomy. Mare Tranquillitatis.
- self-congratulating — the expression or feeling of uncritical satisfaction with oneself or one's own accomplishment, good fortune, etc.; complacency.
- self-congratulation — the expression or feeling of uncritical satisfaction with oneself or one's own accomplishment, good fortune, etc.; complacency.
- self-reconstruction — an act of reconstructing.
- seminiferous tubule — any of the coiled tubules of the testis in which spermatozoa are produced.
- sharp-focus realism — photorealism.
- significant figures — the figures of a number that express a magnitude to a specified degree of accuracy, rounding up or down the final figure
- sir wilfrid laurier — Sir Wilfrid [wil-frid;; French weel-freed] /ˈwɪl frɪd;; French wilˈfrid/ (Show IPA), 1841–1919, Canadian statesman: prime minister 1896–1911.
- sodium hydrosulfite — a white, crystalline, water-soluble powder, Na 2 S 2 O 4 , used as a reducing agent, especially in dyeing, and as a bleach.
- solid of revolution — a three-dimensional figure formed by revolving a plane area about a given axis.
- south african dutch — the Boers.
- south san francisco — a city in central California.
- specular reflection — Specular reflection is reflection of heat or light in which the angles of different parts of the surface are important.
- sphere of influence — any area in which one nation wields dominant power over another or others.
- staff-student ratio — the ratio of teachers to pupils or students in a school, college, or university
- stanford university — (education) A University in the city of Palo Alto, California, noted for work in computing, especially artificial intelligence. See SAIL.
- store refurbishment — Store refurbishment happens when a store needs to be redecorated, modernized or the layout changed. The store will often be closed to customers during this time.
- subsistence farming — farming whose products are intended to provide for the basic needs of the farmer, with little surplus for marketing.
- succession of crops — the continuous cultivation of a crop throughout a season by successive plantings or by the use of varieties with different rates of growth.
- sugar loaf mountain — a mountain in SE Brazil in Rio de Janeiro, at the entrance to Guanabara Bay. 1280 feet (390 meters).
- superannuation fund — a fund used for paying pensions
- supercritical fluid — A supercritical fluid is a fluid at a temperature and pressure at which there is no difference between liquid and gas.
- superhigh frequency — any frequency between 3000 and 30,000 megahertz. Abbreviation: SHF.
- surface effect ship — a large, ship-size air cushion vehicle operated over water.