15-letter words containing t, o, p, e, r, f
- low pass filter — (electronics, graphics) A filter that attenuates high frequency components of a signal. In image processing, a low pass filter might be used to remove noise from an image.
- low-pass filter — a filter that transmits all frequencies below a specified value, substantially attenuating frequencies above this value
- mother of pearl — a hard, iridescent substance that forms the inner layer of certain mollusk shells, used for making buttons, beads, etc.; nacre.
- mother-of-pearl — a hard, iridescent substance that forms the inner layer of certain mollusk shells, used for making buttons, beads, etc.; nacre.
- multiple factor — polygene.
- negative profit — a financial loss
- no respecter of — If you say that someone or something is no respecter of a rule or tradition, you mean that the rule or tradition is not important to them.
- nutty professor — a professor or academic person who is eccentric or slightly crazy or unusual
- offset printing — offset (def 6).
- out of practice — If you are out of practice at doing something, you have not had much experience of it recently, although you used to do it a lot or be quite good at it.
- pandorae fretum — an area in the southern hemisphere of Mars.
- part of fortune — the celestial longitude of the moon plus the celestial longitude of the ascendant minus the celestial longitude of the sun: said to connote an area of life through which one achieves emotional satisfaction.
- passport office — an office which issues passports
- patio furniture — furniture in an area adjoining a house, esp one that is paved and used for outdoor activities
- peacock feather — a (distinctive and brightly coloured) feather from the peacock
- perfectionistic — a person who adheres to or believes in perfectionism.
- perfector press — a flatbed press for printing both sides of a sheet in one operation.
- perforating gun — A perforating gun is a device used to make holes in oil and gas wells in preparation for production.
- performance art — a collaborative art form originating in the 1970s as a fusion of several artistic media, as painting, film, video, music, drama, and dance, and deriving in part from the 1960s performance happenings.
- performing arts — dance, drama, music
- perfunctoriness — performed merely as a routine duty; hasty and superficial: perfunctory courtesy.
- personification — the attribution of human nature or character to animals, inanimate objects, or abstract notions, especially as a rhetorical figure.
- peter of amiens — c1050–1115, French monk: preacher of the first Crusade 1095–99.
- photorefractive — of or relating to a change in the index of refraction by spatial variations of the light intensity, as in a laser.
- pinkster flower — a wild azalea, Rhododendron periclymenoides, of the U.S., having pink or purplish flowers.
- platform rocker — a rocking chair supported on a stationary base
- platform scales — a weighing machine which has a platform that you put something on to be weighed
- platform tennis — a variation of tennis played on a wooden platform enclosed with chicken wire in which the players hit a rubber ball with wooden paddles following the same basic rules as tennis except that only one serve is permitted and balls can be played off the back and side fences.
- platform ticket — a pass allowing a visitor to enter upon a railroad platform from which those not traveling are ordinarily excluded.
- play favourites — to display favouritism
- potash feldspar — any of the feldspar minerals having the composition KAlSi 3 O 8 , as orthoclase.
- pott's fracture — a fracture of the lower fibula and of the malleolus of the tibia, resulting in outward displacement of the foot.
- power breakfast — If business people have a power breakfast, they go to a restaurant early in the morning so that they can have a meeting while they eat breakfast.
- pre-reformation — the act of reforming; state of being reformed.
- preferred stock — stock that has a superior claim to that of common stock with respect to dividends and often to assets in the event of liquidation.
- prefix notation — (language) (Or "prefix syntax") One of the possible orderings of functions and operands: in prefix notation the function precedes all its operands. For example, what may normally be written as "1+2" becomes "(+ 1 2)". A few languages (e.g., lisp) have strictly prefix syntax, many more employ prefix notation in combination with infix notation. The opposite, postfix notation, is somewhat rarer.
- preformationism — the belief in the theory of preformation
- preformationist — someone who advocates the theory of preformation
- premodification — an act or instance of modifying.
- prenotification — notice that is given or served prior to a specific date; advance notice.
- present oneself — to appear, esp at a specific time and place
- preverification — the state of being verified.
- price inflation — inflation fuelled by rising prices
- printing office — a shop or factory in which printing is done.
- pro-confederate — united in a league, alliance, or conspiracy.
- professionalist — to give a professional character or status to; make into or establish as a profession.
- propeller shaft — a shaft that transmits power from an engine to a propeller.
- proper fraction — a fraction having the numerator less, or lower in degree, than the denominator.
- proper function — eigenfunction.
- purified cotton — bleached and sterilized cotton from which the gross impurities, such as the seeds and waxy matter, have been removed: used for surgical dressings, tampons, etc