16-letter words containing u, l, n
- people's commune — a usually rural, Communist Chinese social and administrative unit of from 2000 to 4000 families combined for collective farming, fishing, mining, or industrial projects.
- percussion drill — a drill that is operated by percussion
- perpendicularity — vertical; straight up and down; upright.
- 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
- phase modulation — radio transmission in which the carrier wave is modulated by changing its phase to transmit the amplitude and pitch of the signal.
- photocoagulation — a surgical technique using an intense beam of light from a laser or a xenon-arc bulb to seal blood vessels or coagulate tissue, used primarily in ophthalmology to repair detached retinas or to treat certain kinds of retinopathy.
- photoluminescent — luminescence induced by the absorption of infrared radiation, visible light, or ultraviolet radiation.
- picture moulding — the edge around a framed picture
- pigeon guillemot — a black or brown-speckled seabird of the genus Cepphus, of northern seas, having a sharply pointed black bill, red legs, and white wing patches, as C. grylle (black guillemot) of the North Atlantic and the similar C. columba (pigeon guillemot) of the North Pacific.
- pilot production — sth produced on a trial basis
- pineal apparatus — a median outgrowth of the roof of the diencephalon in vertebrates that in some develops into the pineal eye and in others into the pineal gland.
- pique oneself on — to be proud of
- place in the sun — (often initial capital letter) the star that is the central body of the solar system, around which the planets revolve and from which they receive light and heat: its mean distance from the earth is about 93 million miles (150 million km), its diameter about 864,000 miles (1.4 million km), and its mass about 330,000 times that of the earth; its period of surface rotation is about 26 days at its equator but longer at higher latitudes.
- planetary nebula — an expanding shell of thin ionized gas that is ejected from and surrounds a hot, dying star of about the same mass as the sun; the gas absorbs ultraviolet radiation from the central star and reemits it as visible light by the process of fluorescence.
- platinum-iridium — (standard) A standard, against which all others of the same category are measured. Usage: silly. The notion is that one of whatever it is has actually been cast in platinum-iridium alloy and placed in the vault beside the Standard Kilogram at the International Bureau of Weights and Measures near Paris, as the bar defining the standard metre once was. "This garbage collection algorithm has been tested against the platinum-iridium cons cell in Paris." Compare golden.
- pleased as punch — the chief male character in a Punch-and-Judy show.
- pleasure-seeking — always looking for pleasure
- plymouth company — a company, formed in England in 1606 to establish colonies in America and that founded a colony in Maine in 1607.
- pneumonic plague — a form of plague characterized by lung involvement.
- pourriture noble — noble rot.
- prerevolutionary — of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change: a revolutionary junta.
- pressure flaking — a method of manufacturing a flint tool by pressing flakes from a stone core with a pointed implement, usually of wood tipped with antler or copper.
- pressure welding — the welding together of two objects by holding them together under pressure.
- principal clause — the main clause.
- print journalism — journalism as practiced in newspapers and magazines.
- private language — a language that is not merely secret or accidentally limited to one user, but that cannot in principle be communicated to another
- pro bono publico — for the public good or welfare.
- proto-algonquian — the unattested parent language from which the Algonquian languages are descended.
- pseudocopulation — pollination of plants, esp orchids, by male insects while attempting to mate with flowers that resemble the female insect
- psychoimmunology — the branch of medicine studying the effects of psychological phenomena on the immune system; the intersection of psychology and immunology.
- public ownership — ownership by the state; nationalization
- 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.
- public transport — fare-paying travel
- publication date — the date on which a book or periodical is or is planned to be published.
- publicity agency — an advertising agency; a firm that gets publicity for people or products
- publishing house — a company that publishes books, pamphlets, engravings, or the like: a venerable publishing house in Boston.
- puddling-furnace — the act of a person or thing that puddles.
- pull a long face — to look sad, glum, disapproving, etc.
- pull the plug on — a piece of wood or other material used to stop up a hole or aperture, to fill a gap, or to act as a wedge.
- pull the strings — be in control
- 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
- punctuationalism — punctuated equilibrium.
- purple gallinule — a purple, blue, green, and white gallinule, Porphyrula martinica, inhabiting warmer areas of the New World, having a bright red, yellow, and blue bill, and lemon-yellow legs and feet.
- purple sandpiper — a sandpiper, Calidris maritima, of arctic regions of the New and Old World, having in winter a slate-gray back with purplish reflections.
- put in mothballs — to postpone work on (a project, activity, etc)