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16-letter words containing p, a, n, d, r

  • permanganic acid — an acid, HMnO 4 , known only in solution.
  • perpendicularity — vertical; straight up and down; upright.
  • personal details — details about a person such as their name and address
  • pharmacodynamics — the branch of pharmacology dealing with the course of action, effect, and breakdown of drugs within the body.
  • phase difference — the difference between two sinusoidally varying quantities that have the same frequency, measured either as an angle or a time
  • phonocardiograph — an instrument for graphically recording the sound of the heartbeat.
  • phytoremediation — a process of decontaminating soil or water by using plants and trees to absorb or break down pollutants.
  • pinot chardonnay — Chardonnay.
  • pithecanthropoid — of, relating to, or resembling the former genus Pithecanthropus or one of its members.
  • 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.
  • play one's cards — to carry out one's plans; take action (esp in the phrase play one's cards right)
  • polar coordinate — Usually, polar coordinates. one of two coordinates used to locate a point in a plane by the length of its radius vector and the angle this vector makes with the polar axis (polar angle)
  • polyhedral angle — a configuration consisting of the lateral faces of a polyhedron around one of its vertices. The portion of a pyramid including one of its points is such a configuration.
  • ponderosa (pine) — a yellow pine (Pinus ponderosa) of W North America, valued for its timber
  • portmanteau word — a case or bag to carry clothing in while traveling, especially a leather trunk or suitcase that opens into two halves.
  • portuguese india — a former Portuguese overseas territory on the W coast of India, consisting of the districts of Gôa, Daman, and Diu: annexed by India December 1961. Capital: Gôa.
  • praetorian guard — the bodyguard of a military commander, especially the imperial guard stationed in Rome.
  • predetermination — to settle or decide in advance: He had predetermined his answer to the offer.
  • predispositional — the fact or condition of being predisposed: a predisposition to think optimistically.
  • prescription pad — a pad of prescriptions used by doctors, etc
  • prestidigitation — sleight of hand; legerdemain.
  • preunderstanding — to perceive the meaning of; grasp the idea of; comprehend: to understand Spanish; I didn't understand your question.
  • pribilof islands — a group of islands in the Bering Sea, off SW Alaska, belonging to the US: the breeding ground of the northern fur seal. Area: about 168 sq km (65 sq miles)
  • primary deviance — the violation of a norm or rule that does not result in the violator's being stigmatized as deviant.
  • primary industry — an industry, as agriculture, forestry, or fishing, that deals in obtaining natural materials.
  • printer's reader — a person employed to read proofs and indicate errors
  • private judgment — personal opinion formed independently of the expressed position of an institution, as in matters of religion or politics.
  • privet andromeda — a spreading shrub, Lyonia ligustrina, of the eastern U.S., having leafless, white flowers in terminal clusters.
  • project guardian — (project, security)   A project which grew out of the ARPA support for Multics and the sale of Multics systems to the US Air Force. The USAF wanted a system that could be used to handle more than one security classification of data at a time. They contracted with Honeywell and MITRE Corporation to figure out how to do this. Project Guardian led to the creation of the Access Isolation Mechanism, the forerunner of the B2 labeling and star property support in Multics. The DoD Orange Book was influenced by the experience in building secure systems gained in Project Guardian.
  • prolonged-action — sustained-release.
  • promotional code — A promotional code is a code offered by retailers to customers who can use it to receive a discounted price when buying products online.
  • pseudo-isidorian — of or relating to the collection of documents of the 9th century a.d. that consist chiefly of the Decretals, attributed to Isidore, archbishop of Seville, a.d. 600–36, and that were rejected as spurious in the 15th century.
  • pseudoparenchyma — (in certain fungi and red algae) a compact mass of tissue, made up of interwoven hyphae or filaments, that superficially resembles plant tissue.
  • puddling-furnace — the act of a person or thing that puddles.
  • 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.
  • pyrovanadic acid — an oxyacid of vanadium, known chiefly in the form of its vanadate salts; Formula: H4V2O7
  • radio microphone — a microphone incorporating a radio transmitter so that the user can move around freely
  • radio-phonograph — a radio and phonograph combined in one unit and sharing some components, as the amplifier and speaker(s)
  • radiotransparent — transparent to radiation; invisible in x-ray photographs and under fluoroscopy (opposed to radiopaque).
  • ramsden eyepiece — an eyepiece consisting of two plano-convex crown-glass lenses of equal focal length, placed with the convex sides facing each other and with a separation between the lenses of about two-thirds of the focal length of each.
  • reconceptualized — to form into a concept; make a concept of.
  • redemption value — the price at which the issuing company may choose to repurchase a security before its maturity date
  • refinery upgrade — A refinery upgrade is the process of introducing the newest technology in some parts of the refinery.
  • rodent operative — a name sometimes used for an official (operative) employed by a local authority to destroy vermin
  • sculpture garden — a garden that showcases sculptures in landscaped surroundings
  • secondary phloem — phloem derived from the cambium during secondary growth.
  • self-deprecating — belittling or undervaluing oneself; excessively modest.
  • self-deprecation — belittling or undervaluing oneself; excessively modest.
  • self-deprivation — the act of depriving.
  • self-disparaging — that disparages; tending to belittle or bring reproach upon: a disparaging remark.
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