17-letter words containing e, n, r, o, i
- primary education — junior, elementary schooling
- primary intention — Logic. See under intention (def 5a).
- primary-intention — an act or instance of determining mentally upon some action or result.
- priority check-in — Priority check-in at a hotel is an arrangement which allows a guest to check in without waiting in a line.
- private education — education provided by a private individual or organization, rather than by the state or a public body
- private ownership — the fact of being owned by a private individual or organization, rather than by the state or a public body
- pro forma invoice — an invoice issued before an order is placed or before the goods are delivered giving all the details and the cost of the goods
- pro-environmental — the aggregate of surrounding things, conditions, or influences; surroundings; milieu.
- probation officer — an officer who investigates and reports on the conduct of offenders who are free on probation.
- production number — a specialty number or routine, usually performed by the entire cast consisting of musicians, singers, dancers, stars, etc., of a musical comedy, vaudeville show, or the like.
- production system — (programming) A production system consists of a collection of productions (rules), a working memory of facts and an algorithm, known as forward chaining, for producing new facts from old. A rule becomes eligible to "fire" when its conditions match some set of elements currently in working memory. A conflict resolution strategy determines which of several eligible rules (the conflict set) fires next. A condition is a list of symbols which represent constants, which must be matched exactly; variables which bind to the thing they match and "<> symbol" which matches a field not equal to symbol. Example production systems are OPS5, CLIPS, flex.
- production values — the quality of a media production (such as a film) in regards to elements such as colours, quality, style, etc
- professional army — an army of trained soldiers
- professional foul — In football, if a player commits a professional foul, they deliberately do something which is against the rules in order to prevent another player from scoring a goal.
- proficiency badge — an insignia or device granted by the Girl Scouts and worn especially on a uniform to indicate special achievement.
- profile component — attainment targets in different subjects brought together for the general assessment of a pupil
- promotional event — occasion organized to market or advertise sth
- proof of identity — a document or documents used to verify someone's identity
- propanedioic acid — a colourless crystalline compound occurring in sugar beet. Formula: C3H4O4,CH2(COOH)2
- propelling pencil — a pencil consisting of a metal or plastic case containing a replaceable lead. As the point is worn away the lead can be extended, usually by turning part of the case
- proprietary brand — a brand of product that is privately owned and controlled
- protection factor — a figure representing the relative degree of protection from the sun's rays afforded by a particular sunscreen
- protection racket — a criminal activity in which money gangsters extort money from victims in exchange for freedom from molestation
- protein synthesis — the process by which amino acids are linearly arranged into proteins through the involvement of ribosomal RNA, transfer RNA, messenger RNA, and various enzymes.
- proton microscope — a powerful type of microscope that uses a beam of protons, giving high resolution and sharp contrast
- provincial police — (in Canada) the police force of a province, esp Ontario or Quebec
- pull your head in — be quiet!
- put into practice — If you put a belief or method into practice, you behave or act in accordance with it.
- put the finger on — to inform on or identify, esp for the police
- pyroligneous acid — a yellowish, acidic, water-soluble liquid, containing about 10 percent acetic acid, obtained by the destructive distillation of wood: used for smoking meats.
- quantity surveyor — A quantity surveyor is a person who calculates the cost and amount of materials and workers needed for a job such as building a house or a road.
- quattuordecillion — a cardinal number represented in the U.S. by 1 followed by 45 zeros, and in Great Britain by 1 followed by 84 zeros.
- quick on the draw — having fast reflexes
- rack one's brains — to strain in mental effort, esp to remember something or to find the solution to a problem
- radiation pattern — the graphic representation of the strength and direction of electromagnetic radiation in the vicinity of a transmitting aerial
- radiation therapy — x-rays used as treatment
- radio in the loop — Wireless Local Loop
- radio-transparent — transparent to radiation; invisible in x-ray photographs and under fluoroscopy (opposed to radiopaque).
- radioluminescence — luminescence induced by nuclear radiation.
- reading knowledge — the ability to read a language, but not speak it
- receding forehead — a forehead which slopes backwards
- recoil escapement — anchor escapement.
- reconstructionism — a 20th-century movement among U.S. Jews, founded by Rabbi Mordecai M. Kaplan, advocating that Judaism, being a culture and way of life as well as a religion, is in sum a religious civilization requiring constant adaptation to contemporary conditions so that Jews can identify more readily and meaningfully with the Jewish community.
- reconstructionist — an advocate or supporter of Reconstruction or Reconstructionism.
- recording session — a period of time devoted to recording music in a studio
- recovery position — a position in which an unconscious person can be lain on the floor, which minimises them from further risk
- recreation centre — a facility open to the public for leisure and recreation activities
- recreation ground — an open space for public recreation, esp one in a town, with swings and slides, etc, for children
- recreational drug — drug taken for pleasure
- recreationalist's — recreationist.