16-letter words containing c, r, i, n
- projection paper — sensitized paper for recording a projected image.
- projection print — a print made by the projection of an image onto sensitized paper.
- 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 money — law: criminal fee
- protection order — a legal instruction by a court directing a person not to harm or harass a particular individual
- 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 ownership — ownership by the state; nationalization
- 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
- puddling-furnace — the act of a person or thing that puddles.
- punctuation mark — any of a group of conventional marks or characters used in punctuation, as the period, comma, semicolon, question mark, or dash.
- purchasing agent — a person who buys materials, supplies, equipment, etc., for a company.
- purchasing power — Also called buying power. the ability to purchase goods and services.
- pyloric stenosis — an abnormal narrowing of the valve at the outlet from the stomach, preventing normal passage of food into the small intestine.
- pyroconductivity — conductivity brought about by the application of heat, especially in solids that are not conductors at normal temperatures.
- pyrovanadic acid — an oxyacid of vanadium, known chiefly in the form of its vanadate salts; Formula: H4V2O7
- quadricentennial — of, relating to, or marking the completion of a period of four hundred years.
- quatercentennial — pertaining to or marking a period of 400 years.
- racial profiling — the use of personal characteristics or behavior patterns to make generalizations about a person, as in gender profiling.
- racing certainty — a horse considered very likely or certain to win a race
- rack one's brain — If you rack your brains, you try very hard to think of something.
- radiant exitance — the ability of a surface to emit radiation expressed as the radiant flux emitted per unit area at a specified point on the surface
- 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.
- 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.
- 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.
- re-entry vehicle — the section of a spacecraft or ballistic missile designed to return to earth.
- 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.
- receiver general — a public official in charge of the government's treasury.
- reception centre — A reception centre is a place where people who have no homes or are being looked after by the government can live until somewhere else is found for them to live.
- reckless driving — a serious traffic offence whereby the driver of a vehicle disregards the rules of the road, driving very dangerously, causing accidents or other damage
- reclassification — categorization in a different way
- reconceptualized — to form into a concept; make a concept of.
- reconnection fee — an amount of money that a company charges customers in order to reconnect their supply of electricity, water, gas, or telephone after it has been stopped
- recording studio — place where music is recorded
- 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
- recursion theory — (theory) The study of problems that, in principle, cannot be solved by either computers or humans.