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16-letter words containing a, r, o, n, i, c

  • projective plane — (mathematics)   The space of equivalence classes of vectors under non-zero scalar multiplication. Elements are sets of the form {kv: k != 0, k scalar, v != O, v a vector} where O is the origin. v is a representative member of this equivalence class. The projective plane of a vector space is the collection of its 1-dimensional subspaces. The properties of the vector space induce a topology and notions of smoothness on the projective plane. A projective plane is in no meaningful sense a plane and would therefore be (but isn't) better described as a "projective space".
  • 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.
  • prosecution case — the case brought against someone by a legal authority
  • protection ratio — the minimum acceptable ratio between the amplitudes of a wanted radio or television broadcast signal and any interfering signal
  • protestant ethic — work ethic.
  • proxima centauri — the nearest star to the sun at a distance of 4.3 light-years, part of the Alpha Centauri triple-star system located in the constellation Centaurus.
  • public relations — (used with a plural verb) the actions of a corporation, store, government, individual, etc., in promoting goodwill between itself and the public, the community, employees, customers, etc.
  • public transport — fare-paying travel
  • punctuation mark — any of a group of conventional marks or characters used in punctuation, as the period, comma, semicolon, question mark, or dash.
  • purchasing power — Also called buying power. the ability to purchase goods and services.
  • pyrovanadic acid — an oxyacid of vanadium, known chiefly in the form of its vanadate salts; Formula: H4V2O7
  • racial profiling — the use of personal characteristics or behavior patterns to make generalizations about a person, as in gender profiling.
  • rack one's brain — If you rack your brains, you try very hard to think of something.
  • radio microphone — a microphone incorporating a radio transmitter so that the user can move around freely
  • radio-controlled — A radio-controlled device works by receiving radio signals which operate it.
  • radius of action — the maximum distance that a ship, aircraft, or land vehicle can travel from its base and return without refuelling
  • rainbow seaperch — an embiotocid fish, Hypsurus caryi, living off the Pacific coast of North America, having red, orange, and blue stripes on the body.
  • rambunctiousness — difficult to control or handle; wildly boisterous: a rambunctious child.
  • rating community — an online community based around a website that allows members to rate each other's photographs, qualifications, etc, as well as those of applicants, and which only those approved by existing members are allowed to join
  • re-accreditation — to ascribe or attribute to (usually followed by with): He was accredited with having said it.
  • reaction chamber — the chamber in a rocket engine in which the reaction or combustion of fuel occurs
  • reaction turbine — a turbine driven by the reactive force of a fluid passing through the rotor blades.
  • rearguard action — an action fought by a rearguard
  • recapitalization — a revision of a corporation's capital structure by an exchange of securities.
  • reclassification — categorization in a different way
  • reconceptualized — to form into a concept; make a concept of.
  • recreational sex — sex for the purpose of pleasure rather than reproduction, without the commitment of a relationship
  • rectus abdominis — a long flat muscle that extends along the whole length of both sides of the abdomen. It flexes the vertebral column, particularly the lumbar portion; it also tenses the anterior abdominal wall and assists in compressing the abdominal contents
  • reflection plane — a plane through a crystal that divides the crystal into two halves that are mirror images of each other.
  • regional council — the governing body in certain countries of a particular region or administrative division
  • reidentification — an act or instance of identifying; the state of being identified.
  • reinsurance pool — the grouping of insurers that provide partial or complete insurance coverage to other insurers for (a risk on which a policy has already been issued)
  • releasing factor — a substance usually of hypothalamic origin that triggers the release of a particular hormone from an endocrine gland.
  • relocation costs — payment made by an employer or a government agency to cover removal expenses and other costs incurred by an employee who is required to take up employment elsewhere
  • reporting clause — A reporting clause is a clause which indicates that you are talking about what someone said or thought. For example, in 'She said that she was hungry', 'She said' is a reporting clause.
  • resonant circuit — A resonant circuit combines an inductor and capacitor to make a circuit that responds to a frequency.
  • restriction play — a limited number of opening moves that are predetermined by their chance selection from an accepted list.
  • retrocessionaire — a reinsurance company that accepts or takes a retrocession.
  • rhynchocephalian — belonging or pertaining to the Rhynchocephalia, an order of lizardlike reptiles that are extinct except for the tuatara.
  • ribonucleic acid — RNA.
  • riccati equation — a differential equation, dy/dx + fy 2 + gy + h = 0, where f, g, and h are functions of x.
  • risus sardonicus — fixed contraction of the facial muscles resulting in a peculiar distorted grin, caused esp by tetanus
  • romantic fiction — a genre of fiction focused on romantic love
  • roundabout chair — corner chair.
  • royal commission — (in Britain) a body set up by the monarch on the recommendation of the prime minister to gather information about the operation of existing laws or to investigate any social, educational, or other matter. The commission has prescribed terms of reference and reports to the government on how any change might be achieved
  • saccharification — to convert (starch) into sugar.
  • sangre de cristo — a mountain range in S Colorado and N New Mexico: a part of the Rocky Mountains. Highest peak, Blanca Peak, 14,390 feet (4385 meters).
  • savonarola chair — a chair of the Renaissance having a number of transverse pairs of curved legs, crossing beneath the seat and rising to support the arms and back.
  • school librarian — a librarian who works in or is in charge of a school library
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