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21-letter words containing p, e, n, d

  • progressive education — any of various reformist educational philosophies and methodologies since the late 1800s, applied especially to elementary schools, that reject the rote recitation and strict discipline of traditional, single-classroom teaching, favoring instead more stimulation of the individual pupil as well as group discussion, more informality in the classroom, a broader curriculum, and use of laboratories, gymnasiums, kitchens, etc., in the school.
  • prone pressure method — a method of artificial respiration in which the patient is placed face downward, pressure then being rhythmically applied with the hands to the lower part of the thorax.
  • propantheline bromide — a substance, C 2 3 H 3 0 BrNO 3 , used in the treatment of peptic ulcers.
  • protest demonstration — a manifestation of protest by public rally, parade, etc
  • pseudo-cleft sentence — cleft sentence (def 2).
  • pulse code modulation — a form of modulation that transforms a wave-form, as an audio signal, into a binary signal in which information is conveyed by a coded order of pulses for transmission, storage on a disk, or processing by a computer. Abbreviation: PCM.
  • pulse-code modulation — a form of modulation that transforms a wave-form, as an audio signal, into a binary signal in which information is conveyed by a coded order of pulses for transmission, storage on a disk, or processing by a computer. Abbreviation: PCM.
  • pulse-time modulation — radio transmission in which the carrier is modulated to produce a series of pulses timed to transmit the amplitude and pitch of a signal. Abbr.: PTM.
  • purchasing department — the group of staff within an organization that is responsible for buying goods or products
  • purple-fringed orchid — either of two orchids, Habenaria fimbriata or H. psycodes, of eastern North America, having a cluster of fragrant purple flowers with a fringed lip.
  • purple-fringed orchis — either of two North American orchids (Habenaria psycodes and H. fimbriata) with purple-fringed flowers
  • put in the hard yards — to make a great effort to achieve an end
  • pyrenean mountain dog — a large heavily built dog of an ancient breed originally used to protect sheep from wild animals: it has a long thick white coat with a dense ruff
  • reading comprehension — a text that students use to help them improve their reading skills, by reading it and answering questions relating to the text. Sometimes used as a test or examination of reading skills. A reading comprehension can be in the student's own or another language
  • recurrent expenditure — ongoing expenditure of an organization, such as salaries and travelling expenses
  • redevelopment company — a private corporation or a public agency that stimulates the improvement of land, as through a building project subject to certain designs and controls, by financing, selling, or leasing such real estate to interested buyers or lessees.
  • redwood national park — a national park in N California: redwood forest with some of the world's tallest trees. 172 sq. mi. (445 sq. km).
  • residual unemployment — the unemployment that remains in periods of full employment, as a result of those mentally, physically, or emotionally unfit to work
  • round-necked pullover — a sweater with a plain round neckline
  • sanitation department — the department of local government responsible for collecting and disposing of refuse
  • sao bernardo do campo — a city in SE Brazil, SE of São Paulo.
  • sao tome and principe — Democratic Republic of, a republic in W Africa, comprising the islands of São Tomé and Príncipe, in the Gulf of Guinea, N of the equator: a former overseas province of Portugal; gained independence in 1975. 372 sq. mi. (964 sq. km). Capital: São Tomé.
  • school superintendent — an official whose job is to oversee school administration within a district
  • science correspondent — a newspaper or television journalist who specializes in reporting on new discoveries in science
  • seven-segment display — (electronics)   (SSD) A kind of display element consisting of seven independently controllable lines arranged as a rectangular figure eight. A seven-segment display is the simplest device that can display any of the digits zero to nine (and some other characters) by lighting different combinations of lines. They are often seen in electronic calculators or measuring equipment.
  • sheppard's correction — a method of correcting the bias in standard deviations and higher moments of distributions that arises from grouping values of the variable.
  • sinusoidal projection — an equal-area projection in which parallels are straight lines spaced at regular intervals, the central meridian is a straight line one-half the length of the equator, and the other meridians are curves symmetrical to the central meridian.
  • skop, skiet en donder — violent action and melodramatic adventure in a film
  • snappy video snapshot — (hardware)   (registered trademark) A frame grabber for the IBM PC designed and marketed by Play, Inc..
  • special correspondent — a journalist who covers stories firsthand from a war zone
  • spherical coordinates — Usually, spherical coordinates. any of three coordinates used to locate a point in space by the length of its radius vector and the angles this vector makes with two perpendicular polar planes.
  • steady-state response — A steady-state response is the behavior of a circuit after a long time when steady conditions have been reached after an external excitation.
  • step-down transformer — a device that transfers an alternating current from one circuit to one or more other circuits with a decrease of voltage
  • stock list department — (in an American stock exchange) the department dealing with monitoring compliance with its listing requirements and rules
  • student participation — the extent to which students participate or involve themselves in a class, course, etc
  • supply-side economics — a school of economic thought that emphasizes the importance to a strong economy of policies that remove impediments to supply
  • the antipodes islands — a group of small uninhabited islands in the South Pacific, southeast of and belonging to New Zealand. Area: 62 sq km (24 sq miles)
  • the end of one's rope — the end of one's endurance, resources, etc.
  • the oldest profession — prostitution
  • the slough of despond — a state of extreme despondency, depression or degradation
  • the stars and stripes — the national flag of the United States of America, consisting of 50 white stars representing the present states on a blue field and seven red and six white horizontal stripes representing the original states
  • thermal decomposition — Thermal decomposition is the process in which a chemical species breaks down when its temperature is increased.
  • third-party insurance — insurance that compensates for a loss to a party other than the insured for which the insured is liable.
  • to be mixed up in sth — if you are mixed up in something, usually something bad, you are involved in it
  • to blow sth wide open — to expose something
  • to play second fiddle — If you play second fiddle to someone, your position is less important than theirs in something that you are doing together.
  • to put the wind up sb — If something or someone puts the wind up you, they frighten or worry you.
  • tripartite and fretty — (of a cross) having the limbs divided into three longitudinal strips each, intermingled in the manner of those in a cross parted and fretty.
  • up close and personal — face to face, intimately
  • up hill and down dale — strenuously and persistently
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