17-letter words containing o, r, g, a, s
- louisiana tanager — western tanager.
- lyon king of arms — the chief herald of Scotland
- macdonnell ranges — a mountain system of central Australia, in S central Northern Territory, extending about 160 km (100 miles) east and west of Alice Springs. Highest peak: Mount Zeil, 1531 m (5024 ft)
- macro-linguistics — a field of study concerned with language in its broadest sense and including cultural and behavioral features associated with language.
- magnetic roasting — roasting of a nonmagnetic ore to render it magnetic so that it can be separated from gangue by means of a magnetic field.
- magnetoresistance — a change in the electrical resistance of a material upon exposure to a magnetic field.
- management course — a course provided by an educational establishment such as a university, which teaches skills concerning the management of a company, business, etc
- mass spectrograph — a mass spectroscope for recording a mass spectrum on a photographic plate.
- messier catalogue — a catalogue of 103 nonstellar objects, such as nebulae and galaxies, prepared in 1781–86. An object is referred to by its number in this catalogue, for example the Andromeda Galaxy is referred to as M31
- misorganization's — the act or process of organizing.
- modular sb-prolog — Modular Prolog
- montagu's harrier — a brownish European bird of prey, Circus pygargus, with long narrow wings and a long tail: family Accipitridae (hawks, harriers, etc)
- mundane astrology — the astrology of worldly events, in contrast to the astrology of the individual: used especially in interpretations and forecasts involving politics, the stock market, weather, and disasters.
- nitrogen narcosis — a semistupor, lightheadedness, or euphoria experienced by deep-sea divers when nitrogen from air enters the blood at higher than atmospheric pressure.
- nondiscriminating — differentiating; analytical.
- northeast passage — a ship route along the N coast of Europe and Asia, between the North Sea and the Pacific.
- northwest passage — a ship route along the Arctic coast of Canada and Alaska, joining the Atlantic and Pacific oceans.
- old age pensioner — An old age pensioner is a person who is old enough to receive an pension from their employer or the government.
- on a razor's edge — in an acute dilemma
- on speaking terms — the act, utterance, or discourse of a person who speaks.
- on-street parking — parking (of a car, vehicle, etc) that is or is allowed to be done on a street
- opening arguments — the statements or arguments provided by lawyers at the beginning of a trial
- orange free state — a province in central Republic of South Africa: a Boer republic 1854–1900; a British colony (Orange River Colony, ) 1900–10. 49,647 sq. mi. (128,586 sq. km). Capital: Bloemfontein.
- organ-pipe cactus — a treelike or columnar cactus, Lemaireocereus marginatus, of Mexico, having a central, erect spine surrounded by spreading spines in clusters of five to eight, and funnel-shaped, brownish-purple flowers.
- organic chemistry — the branch of chemistry, originally limited to substances found only in living organisms, dealing with the compounds of carbon.
- organic psychosis — a severe mental illness produced by damage to the brain, as a result of poisoning, alcoholism, disease, etc
- organophosphorous — Misspelling of organophosphorus.
- orifice discharge — Orifice discharge is a model for calculating how quickly a fluid will come out of a punctured vessel or pipe.
- osculating circle — circle of curvature.
- otolaryngologists — Plural form of otolaryngologist.
- oversquare engine — An oversquare engine is an engine which has a cylinder bore that is larger than its stroke.
- passenger station — a station used by passengers
- pastoral theology — the branch of theology dealing with the responsibilities of members of the clergy to the people under their care.
- pate de foie gras — See under foie gras.
- performance drugs — the drugs that are taken illegally by athletes to enhance their sporting performance
- persona non grata — a person who is not welcome: He has become persona non grata in our club since his angry outburst.
- personnel manager — head of Human Resources department
- pillion passenger — a person who travels in a seat or place behind the rider of a motorcycle, scooter, horse, etc
- poison-arrow frog — a small, bright-colored terrestrial frog of the family Dendrobatidae, of Central and South American rain forests, that secretes a virulent poison from its skin, once used on the tips of Indian hunting arrows.
- poor man's orange — a grapefruit
- portuguese guinea — former name of Guinea-Bissau.
- postural drainage — a therapy for clearing congested lungs by placing the patient in a position for drainage by gravity, often accompanied by percussion with hollowed hands.
- pre-investigation — the act or process of investigating or the condition of being investigated.
- precision casting — investment casting.
- program statement — a single instruction in a computer program
- progressive party — a political party formed in 1912 under the leadership of Theodore Roosevelt, advocating popular control of government, direct primaries, the initiative, the referendum, woman suffrage, etc.
- prolonged-release — A prolonged-release drug delivers a dose of a medication over an extended period of time.
- pseudo-aggressive — characterized by or tending toward unprovoked offensives, attacks, invasions, or the like; militantly forward or menacing: aggressive acts against a neighboring country.
- psychographically — Psychology. a graph indicating the relative strength of the personality traits of an individual.
- 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.