16-letter words containing a, e, n, o, u
- pneumatic trough — a trough filled with liquid, especially water, for collecting gases in bell jars or the like by displacement.
- pneumonic plague — a form of plague characterized by lung involvement.
- poitou-charentes — a region of W central France, on the Bay of Biscay: mainly low-lying
- portmanteau word — a case or bag to carry clothing in while traveling, especially a leather trunk or suitcase that opens into two halves.
- portuguese india — a former Portuguese overseas territory on the W coast of India, consisting of the districts of Gôa, Daman, and Diu: annexed by India December 1961. Capital: Gôa.
- praetorian guard — the bodyguard of a military commander, especially the imperial guard stationed in Rome.
- prerevolutionary — of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change: a revolutionary junta.
- primary consumer — (in the food chain) an animal that feeds on plants; a herbivore.
- project guardian — (project, security) A project which grew out of the ARPA support for Multics and the sale of Multics systems to the US Air Force. The USAF wanted a system that could be used to handle more than one security classification of data at a time. They contracted with Honeywell and MITRE Corporation to figure out how to do this. Project Guardian led to the creation of the Access Isolation Mechanism, the forerunner of the B2 labeling and star property support in Multics. The DoD Orange Book was influenced by the experience in building secure systems gained in Project Guardian.
- prosecution case — the case brought against someone by a legal authority
- proxima centauri — the nearest star to the sun at a distance of 4.3 light-years, part of the Alpha Centauri triple-star system located in the constellation Centaurus.
- pseudo-isidorian — of or relating to the collection of documents of the 9th century a.d. that consist chiefly of the Decretals, attributed to Isidore, archbishop of Seville, a.d. 600–36, and that were rejected as spurious in the 15th century.
- pseudocopulation — pollination of plants, esp orchids, by male insects while attempting to mate with flowers that resemble the female insect
- pseudoparenchyma — (in certain fungi and red algae) a compact mass of tissue, made up of interwoven hyphae or filaments, that superficially resembles plant tissue.
- public relations — (used with a plural verb) the actions of a corporation, store, government, individual, etc., in promoting goodwill between itself and the public, the community, employees, customers, etc.
- publication date — the date on which a book or periodical is or is planned to be published.
- pull a long face — to look sad, glum, disapproving, etc.
- pulmonary artery — an artery conveying venous blood from the right ventricle of the heart to the lungs.
- pulse modulation — a type of modulation in which a train of pulses is used as the carrier wave, one or more of its parameters, such as amplitude, being modulated or modified in order to carry information
- purchasing power — Also called buying power. the ability to purchase goods and services.
- put one's oar in — to interfere or interrupt
- put pen to paper — If you put pen to paper, you write something.
- quantum computer — a computer that makes use of the quantum states of electrons or other particles to store and process information as quantum bits.
- quarter sessions — an English court of general criminal jurisdiction for crimes less than homicide, held quarterly.
- queen's champion — a hereditary official at British coronations, representing the king (King's Champion) or the queen (Queen's Champion) who is being crowned, and having originally the function of challenging to mortal combat any person disputing the right of the new sovereign to rule.
- question of fact — a question concerning the reality of an alleged event or circumstance in a trial by jury, usually determined by the jury.
- questionableness — The state or condition of being questionable; dubiousness.
- quinquefoliolate — (botany) Having five leaflets.
- radium emanation — (formerly) radon.
- rambunctiousness — difficult to control or handle; wildly boisterous: a rambunctious child.
- rattle around in — to live or work in (a house, office, etc.) that is too big for one's needs
- reaction turbine — a turbine driven by the reactive force of a fluid passing through the rotor blades.
- rearguard action — an action fought by a rearguard
- reasonable doubt — law: grounds for believing sb is innocent
- reconceptualized — to form into a concept; make a concept of.
- rectus abdominis — a long flat muscle that extends along the whole length of both sides of the abdomen. It flexes the vertebral column, particularly the lumbar portion; it also tenses the anterior abdominal wall and assists in compressing the abdominal contents
- redemption value — the price at which the issuing company may choose to repurchase a security before its maturity date
- redistributional — a distribution performed again or anew.
- redundancy money — a sum of money given by an employer to an employee who has been made redundant: usually calculated on the basis of the employee's rate of pay and length of service
- regional council — the governing body in certain countries of a particular region or administrative division
- regular gasoline — unleaded gasoline or petrol, as for fuelling a vehicle, etc
- reinsurance pool — the grouping of insurers that provide partial or complete insurance coverage to other insurers for (a risk on which a policy has already been issued)
- relative pronoun — one of the pronouns who, whom, which, what, their compounds with -ever or -soever, or that used as the subordinating word to introduce a subordinate clause, especially such a pronoun referring to an antecedent.
- reporting clause — A reporting clause is a clause which indicates that you are talking about what someone said or thought. For example, in 'She said that she was hungry', 'She said' is a reporting clause.
- repressurization — the process or act of pressurizing.
- reserve buoyancy — the difference between the volume of a hull below the designed waterline and the volume of the hull below the lowest opening incapable of being made watertight.
- resonant circuit — A resonant circuit combines an inductor and capacitor to make a circuit that responds to a frequency.
- return on assets — the amount of profit computed by dividing net income before interest and taxes by the cost of assets, usually expressed as a percentage. Abbreviation: ROA.
- ribonucleic acid — RNA.
- riccati equation — a differential equation, dy/dx + fy 2 + gy + h = 0, where f, g, and h are functions of x.