16-letter words containing e, u, r, o
- overaccumulation — Accumulation of too much.
- overcautiousness — the quality or state of being too cautious, wary, or careful
- overenthusiastic — full of or characterized by enthusiasm; ardent: He seems very enthusiastic about his role in the play.
- overnumerousness — very many; being or existing in great quantity: numerous visits; numerous fish.
- oversubscription — to subscribe for more of than is available, expected, or required: The charity drive was oversubscribed by several thousand dollars.
- overurbanization — the act or fact of urbanizing, or taking on the characteristics of a city: Urbanization has led to more air pollution and increasing childhood asthma.
- oxidation number — the state of an element or ion in a compound with regard to the electrons gained or lost by the element or ion in the reaction that formed the compound, expressed as a positive or negative number indicating the ionic charge of the element or ion.
- pacific sturgeon — a dark gray sturgeon, Acipenser transmontanus, inhabiting marine and fresh waters along the northwestern coast of North America, valued as a food and sport fish.
- padded shoulders — (on a garment) shoulders lined, stuffed, or filled out with soft material, esp in order to give them a higher or wider shape
- pairs tournament — an event in a sport such as tennis or darts open to pairs of competitors
- palmtop computer — a computer that has a small screen and compressed keyboard and is small enough to be held in the hand, often used as a personal organizer
- paratuberculosis — Johne's disease.
- parkerhouse roll — a yeast roll shaped by folding over a flat, round piece of buttered dough
- paterson's curse — a purple-flowered noxious plant, Echium plantagineum, a close relative of viper's bugloss, naturalized in Australia and NZ where its harmfulness to livestock has prompted attempts to limit its spread
- percussion drill — a drill that is operated by percussion
- perforated ulcer — an ulcer that bursts through the stomach wall and leaks food and gastric juices into the abdominal cavity
- period furniture — furniture that was made during a particular period in time
- perpetual motion — the motion of a theoretical mechanism that, without any losses due to friction or other forms of dissipation of energy, would continue to operate indefinitely at the same rate without any external energy being applied to it.
- person of colour — a person who is not White
- personal pronoun — any one of the pronouns used to refer to the speaker, or to one or more to or about whom or which he or she is speaking, as, in English, I, we, you, he, she, it, they.
- personal tuition — private tuition
- personality cult — deliberately cultivated adulation of a person, esp a political leader
- phosphor fatigue — screen saver
- picture moulding — the edge around a framed picture
- picture postcard — postcard (def 1).
- pneumatic trough — a trough filled with liquid, especially water, for collecting gases in bell jars or the like by displacement.
- poitou-charentes — a region of W central France, on the Bay of Biscay: mainly low-lying
- port authorities — the body with overall responsibility for a port
- 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.
- portuguese timor — former (1914-75) Portuguese territory in the Malay Archipelago
- postremogeniture — a system of inheritance under which the estate of a deceased person goes to his youngest son. Also called ultimogeniture. Compare primogeniture (def 2).
- potato tuberworm — the larva of the potato moth.
- pourriture noble — noble rot.
- powerfully built — (of a person, esp a man) big and physically strong, with large muscles
- praetorian guard — the bodyguard of a military commander, especially the imperial guard stationed in Rome.
- pre-subscription — a sum of money given or pledged as a contribution, payment, investment, etc.
- prerevolutionary — of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change: a revolutionary junta.
- presumptuousness — full of, characterized by, or showing presumption or readiness to presume in conduct or thought, as by saying or doing something without right or permission.
- primary consumer — (in the food chain) an animal that feeds on plants; a herbivore.
- primary producer — any green plant or any of various microorganisms that can convert light energy or chemical energy into organic matter.
- process industry — business of treating raw materials
- 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.
- prometheus bound — a tragedy (c457 b.c.) by Aeschylus.
- promiscuous mode — (networking) Where a node on a network accepts all packets, regardless of their destination address.
- prosecution case — the case brought against someone by a legal authority
- prosthetic group — the nonprotein acid constituent of a conjugate protein, as the heme group of hemoglobin.
- proteus syndrome — a condition caused by malfunction in cell growth, in which bone and flesh tissue overgrow in localized areas of the body
- 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.