19-letter words containing p, a, c, i

prescription charge — a charge, set by the government, to be paid by a patient for medicines
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
pretty good privacy — (tool, cryptography) (PGP) A high security RSA public-key encryption application for MS-DOS, Unix, VAX/VMS, and other computers. It was written by Philip R. Zimmermann <[email protected]> of Phil's Pretty Good(tm) Software and later augmented by a cast of thousands, especially including Hal Finney, Branko Lankester, and Peter Gutmann. PGP was distributed as "guerrilla freeware". The authors don't mind if it is distributed widely, just don't ask Philip Zimmermann to send you a copy. PGP uses a public-key encryption algorithm claimed by US patent #4,405,829. The exclusive rights to this patent are held by a California company called Public Key Partners, and you may be infringing this patent if you use PGP in the USA. This is explained in the PGP User's Guide, Volume II. PGP allows people to exchange files or messages with privacy and authentication. Privacy and authentication are provided without managing the keys associated with conventional cryptographic software. No secure channels are needed to exchange keys between users, which makes PGP much easier to use. This is because PGP is based on public-key cryptography. PGP encrypts data using the International Data Encryption Algorithm with a random session key, and uses the RSA algorithm to encrypt the session key. In December 1994 Philip Zimmermann faced prosecution for "exporting" PGP out of the United States but in January 1996 the US Goverment dropped the case. A US law prohibits the export of encryption software out of the country. Zimmermann did not do this, but the US government hoped to establish the proposition that posting an encryption program on a BBS or on the Internet constitutes exporting it - in effect, stretching export control into domestic censorship. If the government had won it would have had a chilling effect on the free flow of information on the global network, as well as on everyone's privacy from government snooping.
prick up one's ears — a puncture made by a needle, thorn, or the like.
pride and prejudice — a novel (1813) by Jane Austen (written 1796–97).
pride-of-california — a shrubby plant, Lathyrus splendens, of the legume family, native to southern California, having showy clusters of pale rose-pink, violet, or magenta flowers and large, smooth, beaked pods.
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.
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
production platform — offshore power station
professional advice — advice given by someone trained in a particular and relevant profession or job
professional school — a postgraduate school or college which trains students for a particular profession
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.
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.
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-biographical — of or relating to a person's life: He's gathering biographical data for his book on Milton.
pseudo-conservative — disposed to preserve existing conditions, institutions, etc., or to restore traditional ones, and to limit change.
pseudo-intellectual — a person exhibiting intellectual pretensions that have no basis in sound scholarship.
pseudopsychological — of or relating to psychology.
psychological novel — a novel that focuses on the complex mental and emotional lives of its characters and explores the various levels of mental activity.
psychophysiological — of or relating to psychophysiology.
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.
puerperal psychosis — a mental disorder sometimes occurring in women after childbirth, characterized by deep depression, delusions of the child's death, and homicidal feelings towards the child
puncture repair kit — set of tools for patching a bicycle tyre
put one's back into — to devote all one's strength to (a task)
put sth into action — If you put an idea or policy into action, you begin to use it or cause it to operate.
pyrophosphoric acid — a crystalline, water-soluble powder, H 4 P 2 O 7 , formed by the union of one molecule of phosphorus pentoxide with two molecules of water.
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.
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.
reactive depression — depression occurring in response to some situational stress, as loss of one's job.
reciprocal exchange — an unincorporated association formed so that its members can participate in reciprocal insurance.
reciprocal leveling — leveling between two widely separated points in which observations are made in both directions to eliminate the effects of atmospheric refraction and the curvature of the earth.
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.
reduction potential — (in a galvanic cell) the potential of the electrode at which reduction occurs.
relative complement — the set of elements contained in a given set that are not elements of another specified set.
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 ireland — John, 1838–1918, U.S. Roman Catholic clergyman and social reformer, born in Ireland: archbishop of St. Paul, Minn., 1888–1918.
republic of vietnam — the name (from 1955–75) for South Vietnam, as an independent republic, following the division of the country in 1954 into North Vietnam and South Vietnam
republique malgache — French name of Malagasy Republic.
research fellowship — the position or office of someone who conducts academic research into a subject at a university, etc
reserved occupation — in time of war, an occupation from which one will not be called up for military service

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