19-letter words containing p, r, e, c, t, s
- presumption of fact — a presumption based on experience or knowledge of the relationship between a known fact and a fact inferred from it.
- pretty as a picture — girl: sweetly attractive
- priority scheduling — (operating system) Processes scheduling in which the scheduler selects tasks to run based on their priority as opposed to, say, a simple round-robin. Priorities may be static or dynamic. Static priorities are assigned at the time of creation, while dynamic priorities are based on the processes' behaviour while in the system. For example, the scheduler may favour I/O-intensive tasks so that expensive requests can be issued as early as possible. A danger of priority scheduling is starvation, in which processes with lower priorities are not given the opportunity to run. In order to avoid starvation, in preemptive scheduling, the priority of a process is gradually reduced while it is running. Eventually, the priority of the running process will no longer be the highest, and the next process will start running. This method is called aging.
- prismatic telescope — a telescope having an eyepiece at the side or top equipped with a reflecting prism, used for taking sights at steep angles.
- private first class — a soldier ranking above a private and below a corporal or specialist fourth class in the U.S. Army, and above a private and below a lance corporal in the U.S. Marine Corps.
- private prosecution — a prosecution started by a private individual rather than by the police
- proctosigmoidoscope — sigmoidoscope.
- programmer's switch — (hardware) A button on the front of some Apple Macintosh computers which, when pressed, causes a command line prompt to appear. This gives access to the built-in mini-debugger, which has commands to dump memory, return to the application that was broken out, and others. A more sophisticated debugger must be installed in order to inspect breakpoints, etc.
- promotion prospects — the chances or prospects an employee has for promotion or for gaining a better position, often in the same company
- promotions director — someone in charge of encouraging the sale of (a product) by advertising or securing financial support
- property speculator — a person who takes part in property speculation
- pseudo-aristocratic — of or relating to government by an aristocracy.
- pseudo-conservative — disposed to preserve existing conditions, institutions, etc., or to restore traditional ones, and to limit change.
- psychic determinism — the theory that all aspects of a person's psychological makeup arise from specific causes or forces, as previous experiences or instinctual drives, which may be conscious or unconscious.
- psychrometric chart — a chart for calculating values of relative humidity, absolute humidity, and dew point from psychrometer readings.
- public-interest law — a branch of law that often utilizes class-action suits to protect the interest of a large group or of the public at large, as in matters relating to racial discrimination, air pollution, etc.
- quartermaster corps — the branch of the U.S. Army responsible for supplying food, clothing, fuel, and equipment and for the operation of commissaries, laundries, etc.
- rap on the knuckles — a mild reprimand or light sentence
- reactive depression — depression occurring in response to some situational stress, as loss of one's job.
- relocation expenses — Relocation expenses are a sum of money that a company pays to someone who moves to a new area in order to work for the company. The money is to help them pay for moving house.
- repeat prescription — A repeat prescription is a prescription for a medicine that you have taken before or that you use regularly.
- republic of letters — the collective body of literary people.
- reserved occupation — in time of war, an occupation from which one will not be called up for military service
- resorcinolphthalein — fluorescein.
- royal correspondent — a journalist who reports on matters relating to royalty
- sacrifice operative — a euphemistic term for a suicide bomber
- sanitary protection — Sanitary protection is sanitary towels or tampons.
- santa rosa de copan — a town in W Honduras: site of extensive Mayan ruins.
- scare the pants off — to scare extremely
- secondary picketing — the picketing by strikers of a place of work that supplies goods to or distributes goods from their employer
- setting-up exercise — any of a set of exercises, as deep knee bends and push-ups, for improving one's posture, muscle tone, or limberness, or for reducing one's weight.
- sexual reproduction — reproduction involving the union of gametes.
- simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
- single-cell protein — a protein produced or derived from the culture of a single-celled organism, used as a food supplement or substitute. Abbreviation: SCP.
- slugging percentage — a number expressing a player's average effectiveness in making extra-base hits, calculated by dividing the total number of bases (from all singles, doubles, triples, and home runs) by the number of official at bats
- smoking compartment — a compartment of a train where smoking is permitted
- sodium hypochlorite — a pale-green, crystalline compound, NaOCl, unstable in air, soluble in cold water, decomposes in hot water: used as a bleaching agent for paper and textiles, in water purification, in household use, and as a fungicide.
- southern crab apple — a tree, Malus angustifolia, of the eastern U.S., having oblong leaves, fragrant, pink or rose-colored flowers, and small, round, yellow-green fruit.
- spanish west africa — a former overseas territory of Spain in NW Africa: divided in 1958 into the overseas provinces of Ifni and Spanish Sahara
- special partnership — limited partnership.
- specific characters — the persistent features that distinguish one species from all others
- specific resistance — resistivity (def 2).
- specific-resistance — the power or property of resistance.
- specular reflection — Specular reflection is reflection of heat or light in which the angles of different parts of the surface are important.
- spherical astronomy — the branch of astronomy dealing with the determination of the positions of celestial bodies on the celestial sphere.
- stationers' company — a company or guild of the city of London composed of booksellers, printers, dealers in writing materials, etc., incorporated in 1557.
- stationery cupboard — a cupboard where things like paper, pens and paper clips are kept
- strict counterpoint — the application of the rules of counterpoint as an academic exercise
- subnuclear particle — any of the elementary particles, including those that do not exist in stable matter but appear as a result of high-energy collisions of other particles or nuclei.
- substitution cipher — a cipher that replaces letters of the plain text with another set of letters or symbols.