17-letter words containing p, y

stereophotography — photography producing stereoscopic images.
stereospecificity — (of a reaction) producing a simple stereoisomer.
stray capacitance — undesired capacitance in equipment, occurring between the wiring, between the wiring and the chassis, or between components and the chassis
stymphalian birds — a flock of predacious birds of Arcadia that were driven away and killed by Hercules as one of his labors.
suction lipectomy — the removal of fatty tissue by making a small incision in the skin, loosening the fat layer, and withdrawing it by suction.
sulphur butterfly — sulfur butterfly.
sunday supplement — a special section incorporated in the Sunday editions of many newspapers, often containing features on books, celebrities, home entertainment, gardening, and the like.
superaerodynamics — the branch of aerodynamics that deals with gases at very low densities.
superconductivity — the phenomenon of almost perfect conductivity shown by certain substances at temperatures approaching absolute zero. The recent discovery of materials that are superconductive at temperatures hundreds of degrees above absolute zero raises the possibility of revolutionary developments in the production and transmission of electrical energy.
supervisory board — a board of management of which nonmanagerial workers are members, having supervisory powers over some aspects of management decision-making
supply and demand — economy: basic market theory
supply management — business purchasing
surprise symphony — the Symphony No. 94 in G major (1791) by Franz Josef Haydn.
sympathetic magic — magic predicated on the belief that one thing or event can affect another at a distance as a consequence of a sympathetic connection between them.
synchronous speed — the speed at which an alternating-current machine must operate to generate electromotive force at a given frequency.
synthetic phonics — a method of teaching people to read by training them to pronounce sounds associated with particular letters in isolation and then blend them together
tapestry brussels — a carpet made with three-ply or four-ply worsted yarn drawn up in uncut loops to form a pattern over the entire surface (body Brussels) or made of worsted or woolen yarns on which a pattern is printed (tapestry Brussels)
temporary account — A temporary account is an account which is closed out at the end of the year.
terminal capacity — The terminal capacity is the volume which can be stored in a terminal (= building or area with tanks).
ternary operation — an operation in a mathematical system by which three elements are combined to yield a single result.
tertiary syphilis — the third stage of syphilis, characterized by involvement of the internal organs, especially the brain, spinal cord, heart, and liver.
the alpine valley — a straight fracture on the moon that cuts the Alps in two
the death penalty — capital punishment
the lord's prayer — the, the prayer given by Jesus to His disciples, and beginning with the words Our Father. Matt. 6:9–13; Luke 11:2–4.
the olympic flame — the flame that is symbolically lit at the site of the ancient Olympics in Olympia and transported by relay to the place where the Olympic Games are to be held. It is used to ignite a fire in a cauldron that will burn throughout the Games
the olympic torch — a torch that is symbolically lit at the site of the ancient Olympics in Olympia and transported by relay to the place where the Olympic Games are to be held. It is used to ignite a fire in a cauldron that will burn throughout the Games
the pennsylvanian — the Pennsylvanian period or rock system, equivalent to the Upper Carboniferous of Europe
the penny dropped — If you say the penny dropped, you mean that someone suddenly understood or realized something.
the underemployed — underemployed people
thermoperiodicity — the effect on an organism of rhythmic fluctuations in temperature.
to get psyched up — to prepare mentally
to keep your head — If you keep your head, you remain calm in a difficult situation. If you lose your head, you panic or do not remain calm in a difficult situation.
to lick your lips — If you lick your lips, you move your tongue across your lips as you think about or taste something pleasant.
to lose your grip — If you lose your grip, you become less efficient and less confident, and less able to deal with things.
to open your eyes — If something opens your eyes, it makes you aware that something is different from the way that you thought it was.
to open your mind — If something opens your mind to new ideas or experiences, it makes you more willing to accept them or try them.
to play it by ear — If you play it by ear, you decide what to say or do in a situation by responding to events rather than by following a plan which you have decided on in advance.
to play the field — If someone plays the field, they have a number of different romantic or sexual relationships.
to play with fire — If you say that someone is playing with fire, you mean that they are doing something dangerous that may result in great harm for them and cause many problems.
to push your luck — If you say that someone is pushing their luck, you think they are taking a bigger risk than is sensible, and may get into trouble.
to slip your mind — If something slips your mind, you forget it.
tolpuddle martyrs — six farm workers sentenced to transportation for seven years in 1834 for administering an unlawful oath to form a trade union in the village of Tolpuddle, Dorset
top-security wing — a wing of a prison, mental hospital, etc that has a very high level of precautions against escape
trick photography — photography that creates an illusion
tympanic membrane — eardrum.
uncompassionately — having or showing compassion: a compassionate person; a compassionate letter.
uncomprehendingly — to understand the nature or meaning of; grasp with the mind; perceive: He did not comprehend the significance of the ambassador's remark.
unconformity trap — An unconformity trap is a hydrocarbon trap where the closure is made by an unconformity (= a formation of rock layers which represents a gap in the geological record).
unemployment line — When people talk about the unemployment line, they are talking about the state of being unemployed, especially when saying how many people are unemployed.
unemployment rate — percentage of population without jobs

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