17-letter words containing o, r, a, c, l, i
- patriarchal cross — a Latin cross having a shorter crosspiece above the customary one.
- periodical cicada — seventeen-year locust.
- personal distance — personal space.
- personality clash — friction between two people who have different personalities or points of view
- personnel carrier — a vehicle used for transporting troops
- petrol filler cap — a small cover that goes over the hole in a vehicle into which you put petrol
- pharmacologically — the science dealing with the preparation, uses, and especially the effects of drugs.
- phenylformic acid — benzoic acid.
- philanthropically — of, pertaining to, engaged in, or characterized by philanthropy; benevolent: a philanthropic foundation.
- phonological rule — an operation in generative phonology that substitutes one sound or class of sounds for another in a phonological derivation.
- platinic chloride — chloroplatinic acid.
- point reyes lilac — a prostrate shrub, Ceanothus gloriosus, of southern California, having leathery, roundish leaves and purplish or deep-blue flowers.
- polar continental — a type of cold, dry air mass originating at high latitudes over land areas
- polar coordinates — 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)
- police department — A police department is an official organization which is responsible for making sure that people obey the law.
- police procedural — a mystery novel, film, or television drama that deals realistically with police work.
- political liberty — the right to express oneself freely and effectually regarding the conduct, makeup, and principles of the government under which one lives.
- political refugee — a person who has fled from a homeland because of political persecution.
- polyacrylonitrile — a polymer of acrylonitrile used in the manufacture of Orlon and other synthetic textiles.
- poststructuralism — a variation of structuralism, often seen as a critique, emphasizing plurality of meaning and instability of concepts that structuralism uses to define society, language, etc.
- pre-qualification — a quality, accomplishment, etc., that fits a person for some function, office, or the like.
- pre-technological — of or relating to technology; relating to science and industry.
- prefect apostolic — the administrator, usually below the rank of bishop, in charge of a prefecture apostolic.
- probability curve — a curve that describes the distribution of probability over the values of a random variable.
- procurator fiscal — In the Scottish legal system, the procurator fiscal is a public official who puts people on trial.
- product liability — the responsibility of a manufacturer for injury or loss caused by its product.
- production values — the quality of a media production (such as a film) in regards to elements such as colours, quality, style, etc
- prostatic utricle — a small pouch near the prostate gland that opens into the urethra.
- prothoracic gland — either of a pair of endocrine glands in the anterior thorax of some insects, functioning to promote the series of molts from hatching to adulthood.
- provincial police — (in Canada) the police force of a province, esp Ontario or Quebec
- provincialization — to make provincial in character.
- pseudo-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- pseudo-moralistic — a person who teaches or inculcates morality.
- psychographically — Psychology. a graph indicating the relative strength of the personality traits of an individual.
- psychoprophylaxis — Lamaze method.
- purple of cassius — a purple pigment precipitated as a sol by the interaction of gold chloride and a solution of stannic acid and stannous chloride: used chiefly in the manufacture of ruby glass, ceramic glazes, and enamels.
- 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.
- pyrosulfuric acid — a strong, crystalline acid, H2S2O7, prepared commercially as a heavy, oily, fuming liquid: used in making explosives and dyes, as a sulfating agent, etc.
- quadratic formula — the formula for determining theroots of a quadratic equation from its coefficients: .
- 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.
- radio alarm clock — an alarm clock which consists of a radio that can be set to play at a particular time
- radioluminescence — luminescence induced by nuclear radiation.
- rail detector car — a car equipped with special instruments and used to locate defects in rails.
- railroad crossing — place for vehicles to cross train tracks
- rainbow coalition — a political grouping together by several minority parties
- rational function — a function that can be written as the quotient of two polynomials with integral coefficients.
- recoil escapement — anchor escapement.
- recreational drug — drug taken for pleasure
- recreationalist's — recreationist.
- recrystallization — to become crystallized again.