19-letter words containing t, i, p
- 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
- privatization issue — an issue of shares available for purchase by members of the public when a publicly owned organization is transferred to the private sector
- proctosigmoidoscope — sigmoidoscope.
- proctosigmoidoscopy — sigmoidoscopy.
- production platform — offshore power station
- professionalization — to give a professional character or status to; make into or establish as a profession.
- profitability study — a study of how much profit a company, organization, etc, makes or how profitable it is
- 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.
- projection printing — the act or process of making projection prints.
- projective geometry — the geometric study of projective properties.
- projective property — a geometric property that is unaltered by projection; a property of relative position, as coincidence or length, but not of magnitude.
- 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
- propositional logic — (logic) (or "propositional calculus") A system of symbolic logic using symbols to stand for whole propositions and logical connectives. Propositional logic only considers whether a proposition is true or false. In contrast to predicate logic, it does not consider the internal structure of propositions.
- protease inhibitors — a drug that inhibits the action of protease, especially any of a class of antiviral drugs that prevent the cleavage and replication of HIV proteins.
- proto-indo-european — the unattested prehistoric parent language of the Indo-European languages; Indo-European.
- proton-proton chain — a series of thermonuclear reactions, responsible for the energy production in stars like the sun, in which the nuclei of hydrogen atoms are transformed into helium nuclei by sequential addition of single hydrogen nuclei.
- 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.
- pseudo-experimental — pertaining to, derived from, or founded on experiment: an experimental science.
- pseudo-intellectual — a person exhibiting intellectual pretensions that have no basis in sound scholarship.
- pseudo-intransitive — denoting an occurrence of a normally transitive verb in which a direct object is not explicitly stated or forms the subject of the sentence, as in Margaret is cooking or these apples cook well
- pseudohermaphrodite — an individual having internal reproductive organs of one sex and external sexual characteristics resembling those of the other sex or being ambiguous in nature. Compare hermaphrodite (def 1).
- 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.
- psychotechnological — of or relating to psychotechnology
- psychrometric chart — a chart for calculating values of relative humidity, absolute humidity, and dew point from psychrometer readings.
- public intellectual — an intellectual, often a noted specialist in a particular field, who has become well-known to the general public for a willingness to comment on current affairs
- 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.
- puncture repair kit — set of tools for patching a bicycle tyre
- purse-string suture — a suture for a circular opening, stitched around the edge, that closes it when pulled.
- put a figure on sth — When you put a figure on an amount, you say exactly how much it is.
- put one's back into — to devote all one's strength to (a task)
- put one's finger on — any of the terminal members of the hand, especially one other than the thumb.
- put sth into action — If you put an idea or policy into action, you begin to use it or cause it to operate.
- put the skids under — a plank, bar, log, or the like, especially one of a pair, on which something heavy may be slid or rolled along.
- put your foot in it — If someone puts their foot in it or puts their foot in their mouth, they accidentally do or say something which embarrasses or offends people.
- pyrenees-orientales — a department in S France. 1600 sq. mi. (4145 sq. km). Capital: Perpignan.
- quick on the uptake — You say that someone is quick on the uptake when they understand things quickly. You say that someone is slow on the uptake when they have difficulty understanding simple or obvious things.
- radiation potential — the potential in volts that must be applied to an atom or molecule to cause it to emit radiation at one of its characteristic frequencies.
- radiochromatography — chromatography in which radiolabeled substances on the chromatogram are determined quantitatively or qualitatively by measuring their radioactivity.
- radiopharmaceutical — any of a number of radioactive drugs used diagnostically or therapeutically.
- rate of penetration — The rate of penetration is the speed with which a drill bit can break the rock under it.
- reactive depression — depression occurring in response to some situational stress, as loss of one's job.
- reception committee — an organized gathering of people to welcome a visitor
- reciprocity failure — a failure of the two exposure variables, light intensity and exposure time, to behave in a reciprocal fashion at very high or very low values
- reconceptualization — to form into a concept; make a concept of.
- recording equipment — devices used for sound reproduction