15-letter words containing y, n

polynomial ring — the set of all polynomials in an indeterminate variable with coefficients that are elements of a given ring.
polynomial-time — (complexity) (P) The set or property of problems which can be solved by a known polynomial-time algorithm.
polyphloesboean — noisy
polysomnography — a record of a person's sleep pattern, breathing, heart activity, and limb movements during sleep. Abbreviation: PSG.
polyunsaturated — of or noting a class of animal or vegetable fats, especially plant oils, whose molecules consist of carbon chains with many double bonds unsaturated by hydrogen atoms and that are associated with a low cholesterol content of the blood.
polyvinyl resin — any of the class of thermoplastic resins derived by the polymerization or copolymerization of a vinyl compound: used chiefly as adhesives, sizing agents, and coatings.
postsynchronize — to add sound, such as dubbing, to a film or video after shooting is completed
postulationally — in a postulational manner
poultry farming — breeding and keeping fowl
pre-delinquency — failure in or neglect of duty or obligation; dereliction; default: delinquency in payment of dues.
premillennially — from a premillennial point of view
presbyterianism — church government by presbyters or elders, equal in rank and organized into graded administrative courts.
presbyterianize — to convert or be converted into Presbyterianism
presidents' day — the third Monday in February, a legal holiday in the U.S., commemorating the birthdays of George Washington and Abraham Lincoln.
presynaptically — in a presynaptic manner
preternaturally — out of the ordinary course of nature; exceptional or abnormal: preternatural powers.
primary contact — a communication or relationship between people that is characterized by intimacy and personal familiarity.
primary insurer — A primary insurer is the insurance company that first sells insurance to a client, who later purchases reinsurance.
primary rainbow — the most commonly seen rainbow, formed by light rays that undergo a single internal reflection in a drop of water.
primary sealing — Primary sealing is devices used for sealing tanks, to reduce emissions, often made of foam.
primary winding — an induction coil that is the part of an electric circuit in which a changing current induces a current in a neighbouring circuit
private company — a company whose shareholders may not exceed 50 in number and whose shares may not be offered for public subscription.
privately owned — owned by a private individual or organization, rather than by the state or a public body
procrastinatory — to defer action; delay: to procrastinate until an opportunity is lost.
profoundly deaf — unable to hear any sound below 95 decibels in one's better ear
promissory note — a written promise to pay a specified sum of money to a designated person or to his or her order, or to the bearer of the note, at a fixed time or on demand.
property centre — a service for buying and selling property, including conveyancing, provided by a group of local solicitors
propionaldehyde — a colorless, water-soluble liquid, C 3 H 6 O, having a pungent odor: used chiefly in the manufacture of plastics.
proportionality — having due proportion; corresponding.
proportionately — proportioned; being in due proportion; proportional.
propositionally — the act of offering or suggesting something to be considered, accepted, adopted, or done.
propylene group — the bivalent group −CH(CH 3)CH 2 −, derived from propylene or propane.
propylhexedrine — a colorless, adrenergic, water-soluble liquid, C 1 0 H 2 N, used by inhalation as a nasal decongestant.
propylitization — the alteration of igneous rock to propylite
proxy statement — a statement containing information, frequently exhaustive, about a corporation, its officers, and any propositions to be voted on, sent to stockholders when their proxies are being solicited for an annual or a special stockholders' meeting.
pseudopregnancy — Pathology, Veterinary Pathology. false pregnancy.
psychodiagnosis — a psychological examination using psychodiagnostic techniques.
psychohistorian — a person who writes psychohistory
psychosynthesis — a theoretical effort to reconcile components of the unconscious, including dreams, with the rest of the personality.
publicity agent — A publicity agent is a person whose job is to make sure that a large number of people know about a person, show, or event so that they are successful.
publicity event — an event designed to generate publicity
publicity stunt — something done to attract publicity
pulmonary valve — a semilunar valve between the pulmonary artery and the right ventricle of the heart that prevents the blood from flowing back into the right ventricle.
punch the bundy — to start work
purslane family — the plant family Portulacaceae, characterized by chiefly herbaceous plants having simple, often fleshy leaves, sometimes showy flowers, and capsular fruit, and including bitterroot, purslane, red maids, rose moss, and spring beauty.
pusillanimously — lacking courage or resolution; cowardly; faint-hearted; timid.
put years on sb — If you say that something such as an experience or a way of dressing has put years on someone, you mean that it has made them look or feel much older.
pycnodysostosis — a disorder characterized by fragile bones
pyramid selling — Pyramid selling is a method of selling in which one person buys a supply of a particular product direct from the manufacturer and then sells it to a number of other people at an increased price. These people sell it on to others in a similar way, but eventually the final buyers are only able to sell the product for less than they paid for it.
pyrimidine base — any of a number of similar compounds having a basic structure that is derived from pyrimidine, including cytosine, thymine, and uracil, which are constituents of nucleic acids

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