20-letter words containing a, c, o, r, n

short back and sides — If a man has a short back and sides, his hair is cut very short at the back and sides with slightly thicker, longer hair on the top of the head.
silicon tetrahydride — silane (def 1).
sinfonia concertante — a type of concerto for two or more solo instruments accompanied by an orchestra
skull and crossbones — a representation of a front view of a human skull above two crossed bones, originally used on pirates' flags and now used as a warning sign, as in designating substances as poisons.
solitary confinement — the confinement of a prisoner in a cell or other place in which he or she is completely isolated from others.
south american plate — a major tectonic division of the earth's crust, comprising the continent of South America and several ocean basins and bounded on the north by the Caribbean Plate, on the east by the Mid-Atlantic Ridge, on the west by a submarine trench that borders the western coast of the continent, and on the south by the Antarctic Plate.
southern oscillation — a low-latitude fluctuation of atmospheric pressure closely linked with El Niño events, specifically the periods of El Niño warming and La Niña cooling.
special relationship — the exceptionally close political, diplomatic, cultural and historical relations between the United States and the United Kingdom
specific performance — (especially in the sale of land) literal compliance with one's contractual promises pursuant to a judicial mandate.
spectroscopic binary — a binary star having components that are not sufficiently separated to be resolved by a telescope, known to be a binary only bythe variations in wavelength of emitted light that are detected by a spectroscope.
spherical aberration — variation in focal length of a lens or mirror from center to edge, due to its spherical shape.
spherical coordinate — Usually, spherical coordinates. any of three coordinates used to locate a point in space by the length of its radius vector and the angles this vector makes with two perpendicular polar planes.
spontaneous recovery — the reappearance of a response after its extinction has been followed by a period of rest
spotted crane's-bill — the American wild geranium, Geranium maculatum.
square cross-section — If a kelly has a square cross-section, it has a surface area with four equal sides, when looked at as if has been sliced through.
st. george's channel — a channel between Wales and Ireland, connecting the Irish Sea and the Atlantic. 100 miles (160 km) long; 50–90 miles (81–145 km) wide.
step into the breach — If you step into the breach, you do a job or task which someone else was supposed to do or has done in the past, because they are suddenly unable to do it.
stress concentration — A stress concentration in a solid is a place where there is a lot of stress, either because a force is applied in a particular area or there is a change in the cross-sectional area.
strong nuclear force — an interaction between elementary particles responsible for the forces between nucleons in the nucleus. It operates at distances less than about 10–15 metres, and is about a hundred times more powerful than the electromagnetic interaction
subscription library — a commercial lending library
summary jurisdiction — the right a court has to adjudicate immediately upon some matter arising during its proceedings
supersonic transport — a commercial jet airplane that can fly faster than the speed of sound. Abbreviation: SST.
surveillance society — a society where surveillance technology is widely used to monitor people's everyday activities
synchronized skating — the art or sport of teams of up to twenty skaters holding onto each other and moving in patterns in time to music
synchronous rotation — rotation of a satellite in which the period of rotation is equal to the period of orbit around its primary, leaving the same face always pointing toward the primary: The moon is in synchronous rotation about the earth.
systemic circulation — the circulatory system in general.
tactical air command — a U.S. Air Force command supplying direct air support to U.S. Army ground combat units.
take to the cleaners — a person who cleans, especially one whose regular occupation is cleaning offices, buildings, equipment, etc.
technology agreement — a framework designed by trade unions for negotiating changes in employment caused by the introduction of new technology
teletype corporation — (company) The company which made Teletype teletypewriters. Address: Skokie, Illinois, USA.
television broadcast — sth shown on tv
terms and conditions — commerce: rules, restrictions
tetrahydrocannabinol — a compound, C 21 H 30 O 2 , that is the physiologically active component in cannabis preparations (marijuana, hashish, etc.) derived from the Indian hemp plant or produced synthetically. Abbreviation: THC.
the course of nature — the ordinary course of events
the internet account — An Internet provider in Sydney, Australia who provides SLIP, PPP and CLI accounts for the same rates. <[email protected]> handles Acorn software. E-mail: <[email protected]>. Telephone: +61 (2) 968 4333. Fax: +61 (2) 968 4334. Address: PO BOX 473, Crows Nest, NSE 2065, Australia.
therapeutic abortion — abortion performed when a woman's pregnancy endangers her health.
there is no call for — If you say that there is no call for someone to behave in a particular way, you are criticizing their behaviour, usually because you think it is rude.
thermal conductivity — the amount of heat per unit time per unit area that can be conducted through a plate of unit thickness of a given material, the faces of the plate differing by one unit of temperature.
thermodynamic system — a system whose states of equilibrium can be specified by a few macroscopic properties.
thomas of erceldoune — Thomas of, Thomas of Erceldoune.
thought transference — transference of thought by extrasensory means from the mind of one individual to another; telepathy.
three-thorned acacia — honey locust.
to clean up your act — If someone who has been behaving badly cleans up their act, they start to behave in a more acceptable or responsible way.
to cost someone dear — If something that someone does costs them dear, they suffer a lot as a result of it.
to get your own back — If you get your own back on someone, you have your revenge on them because of something bad that they have done to you.
to keep your balance — If you keep your balance, for example, when standing in a moving vehicle, you remain steady and do not fall over. If you lose your balance, you become unsteady and fall over.
to reach new heights — to become higher than ever before
to stick in the craw — to be unacceptable or displeasing to someone
tom, dick, and harry — the ordinary person; people generally; everyone: They invited every Tom, Dick, and Harry to the party.
tom, dick, and jerry — a hot mixed drink containing rum, brandy, egg, nutmeg, and sometimes milk

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