21-letter words containing n, a, r, i, s

surface friction drag — the part of the drag on a body moving through a fluid that is dependent on the nature of the surface of the body
surface of projection — the surface upon which an image or a set of points is projected.
surface of revolution — a surface formed by revolving a plane curve about a given line.
sympathetic vibration — a vibration induced by resonance.
synchrotron radiation — electromagnetic radiation emitted by charged particles as they pass through magnetic fields.
systeme international — Système International d'Unités
take one's finger out — stop delaying or procrastinating
take someone prisoner — to capture and hold someone as a prisoner, esp as a prisoner of war
take under advisement — to consider carefully
tape operating system — (operating system) (TOS) An IBM operating system for System 360, used in the early days around 1965 to support the IBM 360 model 30 et al. TOS was a predecessor to IBM's Disk Operating System. TOS died out really early as disks such as the 2311 and 2314 became common with the IBM 360 whereas thet had been a real luxury on the IBM 7090.
tartarian honeysuckle — an Asian honeysuckle, Lonicera tatarica, having fragrant, white to pink flowers.
temperature inversion — inversion (def 12).
tenure track position — a position or office that carries with it the opportunity to eventually obtain tenure or the right to permanent employment
terrestrial radiation — long-wave electromagnetic radiation in the form of heat emitted from the earth's surface and atmosphere.
tetrabromofluorescein — eosin (def 1).
the acting profession — actors considered as a group
the central provinces — the Canadian provinces of Ontario and Quebec
the early renaissance — the period from about 1400 to 1500 in European, esp Italian, painting, sculpture, and architecture, when naturalistic styles and humanist theories were evolved from the study of classical sources, notably by Donatello, Masaccio, and Alberti
the man in the street — If you talk about the man in the street or the man or woman in the street, you mean ordinary people in general.
the press association — the national news agency for the United Kingdom and Ireland
the probation service — a criminal justice service that is mainly responsible for dealing with offenders by placing them under the supervision of a probation officer
the shipping forecast — a radio broadcast made by the BBC of weather reports and forecasts for the seas around the British Isles
the stars and stripes — the national flag of the United States of America, consisting of 50 white stars representing the present states on a blue field and seven red and six white horizontal stripes representing the original states
the stationery office — (in the UK) the company that supplies the civil service with all its office supplies, machinery, printing and binding, etc
theater of operations — the part of the theater of war, including a combat zone and a communications zone, that is engaged in military operations and their support.
thermal decomposition — Thermal decomposition is the process in which a chemical species breaks down when its temperature is increased.
thermal power station — a power station in which heat is converted into electricity
third-party insurance — insurance that compensates for a loss to a party other than the insured for which the insured is liable.
throw one's hat at it — to give up all hope of getting or achieving something
to be arrayed against — to be opposed to
to be in dire straits — to be in a position of acute difficulty
to have green fingers — If someone has green fingers, they are very good at gardening and their plants grow well.
to lay something bare — If you lay something bare, you uncover it completely so that it can then be seen.
to risk life and limb — If someone risks life and limb, they do something very dangerous that may cause them to die or be seriously injured.
to sink without trace — If you say that someone or something sinks without trace or sinks without a trace, you mean that they stop existing or stop being successful very suddenly and completely.
toussaint l'ouverture — François Dominique [frahn-swa dawmee-neek] /frɑ̃ˈswa dɔmiˈnik/ (Show IPA), 1743–1803, Haitian patriot and leader of the Haitian Revolution slave rebellion.
trades union congress — The Trades Union Congress in Britain is the same as the TUC.
trans-alaska pipeline — a pipeline system opened in 1977 that transports oil 800 miles (1300 km) across Alaska, from Prudhoe Bay on the North Slope S to Valdez harbor.
transactinide element — any element having an atomic number higher than 103, the last of the actinide series. These superheavy, radioactive elements are extremely short-lived, and can only be created in the laboratory.
transformational rule — Linguistics. a rule of transformational grammar that relates two phrase markers in the course of a derivation from the deep to the surface syntactic representation of a sentence, as by reordering, inserting, or deleting elements; a rule that converts deep structures into surface structures.
transport segregation — Transport segregation is when particles from a mixture separate because the mixture vibrates while it is being moved.
traveling salesperson — a representative of a business firm who travels in an assigned territory soliciting orders for a company's services.
triangulation station — a point used in triangulation as a basis for making maps. Triangulation stations are marked in a number of ways, such as by a tapering stone pillar on a hilltop
trustee in bankruptcy — a person appointed by a court to administer the property of a bankrupt.
tubercular meningitis — an infection of the membranes of the central nervous system caused by the bacterium Mycobacterium tuberculosis; features can include fever, headache, and coma
tumor necrosis factor — a protein, produced in humans and other animals, that is destructive to cells showing abnormally rapid growth: identical with cachectin. Abbreviation: TNF.
turn state's evidence — If someone who is accused of a crime turns state's evidence, they agree to give evidence in a law court against another person such as a former accomplice, usually in exchange for a reduced sentence for themselves.
ulster unionist party — a Northern Irish political party advocating the maintenance of union with the UK
ultraviolet astronomy — the branch of astronomy that deals with celestial objects emitting electromagnetic radiation in the ultraviolet range.
undesirable discharge — a discharge under other than honorable conditions of a person from military service by administrative action.

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