19-letter words containing p, r, o, m
- persecution complex — an acute irrational fear that other people are plotting one's downfall and that they are responsible for one's failures
- phenylpropanolamine — a substance, C 9 H 1 3 NO, related to ephedrine and amphetamine, available in various popular nonprescription diet aids as an appetite suppressant.
- phenylthiocarbamide — a crystalline, slightly water-soluble solid, C 6 H 5 NHCSNH 2 , that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.
- photoelectric meter — an exposure meter using a photocell for the measurement of light intensity.
- photographic memory — total recall
- photopolymerization — polymerization induced by light.
- pilgrimage of grace — a rebellion in 1536 in N England against the Reformation and Henry VIII's government
- pistachio ice cream — ice cream flavoured with pistachios
- planning permission — In Britain, planning permission is official permission that you must get from the local authority before building something new or adding something to an existing building.
- plastic deformation — In plastic deformation a material changes shape when a stress is applied to it and does not go back to its original state when the stress is removed.
- pneumoencephalogram — an encephalogram made after the replacement of the cerebrospinal fluid by air or gas, rarely used since the development of the CAT scanner.
- pneumogastric nerve — the vagus nerve.
- pointe-aux-trembles — a city in S Quebec, in E Canada, N of Montreal, on the St. Lawrence.
- polytene chromosome — a giant, cross-banded chromosome that results from multiple replication of its genetic material with the duplicated chromatin strands remaining closely associated.
- portobello mushroom — a dark mushroom, strong in flavor, having a broad, flat cap that is often grilled and eaten
- post office problem — (algorithm) Given a set of points (in N dimensions), find another point which minimises the sum of the distances from that point to each of the others.
- post-polio syndrome — Pathology. muscle weakness occurring several decades after recovery from a polio infection, caused by fatiguing of collateral nerve axons developed during physical rehabilitation.
- potassium carbonate — a white, granular, water-soluble powder, K 2 CO 3 , used chiefly in the manufacture of soap, glass, and potassium salts.
- potassium hydroxide — a white, deliquescent, water-soluble solid, KOH, usually in the form of lumps, sticks, or pellets, that upon solution in water generates heat: used chiefly in the manufacture of soap, as a laboratory reagent, and as a caustic.
- preproduction model — a prototype of a product before the product goes into full-scale production
- presumption of fact — a presumption based on experience or knowledge of the relationship between a known fact and a fact inferred from it.
- primary containment — Primary containment is the main means of preventing leaks and spills using equipment in direct content with the oil or gas being stored or transported.
- primitive methodist — a member of a Protestant denomination (Primitive Methodist Church) founded in England in 1812 and later established in the U.S., characterized by its adherence to the basic doctrines, principles, and practices taught by John Wesley.
- prismatic telescope — a telescope having an eyepiece at the side or top equipped with a reflecting prism, used for taking sights at steep angles.
- process performance — Process performance is a measure of how efficient or effective a process is.
- proctosigmoidoscope — sigmoidoscope.
- proctosigmoidoscopy — sigmoidoscopy.
- production platform — offshore power station
- programmed learning — a progressively monitored, step-by-step teaching method, employing small units of information or learning material and frequent testing, whereby the student must complete or pass one stage before moving on to the next.
- 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.
- progressive judaism — Reform Judaism.
- projective geometry — the geometric study of projective properties.
- 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 settlement — an agreement between a divorcing husband and wife covering the division of their assets
- pseudo-experimental — pertaining to, derived from, or founded on experiment: an experimental science.
- 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).
- pseudorandom number — (programming) One of a sequence of numbers generated by some algorithm so as to have an even distribution over some range of values and minimal correlation between successive values. Pseudorandom numbers are used in simulation and encryption. They are pseudorandom not random because the sequence eventually repeats exactly and is entirely determined by the initial conditions. One of the simplest algorithms is x[i+1] = (a * x[i] + c) mod m but this repeats after at most m numbers and successive numbers are closely related. Better algorithms generally use more previous numbers to calculate the next number.
- psychrometric chart — a chart for calculating values of relative humidity, absolute humidity, and dew point from psychrometer readings.
- pythagoras' theorem — (spelling) It's Pythagoras's Theorem.
- pythagorean theorem — Pythagoras's Theorem
- 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.
- 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.
- ralph waldo emerson — Ralph Waldo [wawl-doh,, wol-] /ˈwɔl doʊ,, ˈwɒl-/ (Show IPA), 1803–82, U.S. essayist and poet.
- reactor temperature — The reactor temperature is the temperature at various stages in a reactor in an FCC unit.
- reception committee — an organized gathering of people to welcome a visitor
- recording equipment — devices used for sound reproduction
- relative complement — the set of elements contained in a given set that are not elements of another specified set.
- representationalism — Also called representative realism. Epistemology. the view that the objects of perception are ideas or sense data that represent external objects, especially the Lockean doctrine that the perceived idea represents exactly the primary qualities of the external object.