20-letter words containing r, a, s, p

spiral of archimedes — a curve that is the locus of a point that moves outward with uniform speed along a vector, beginning at the origin, while the vector rotates about the origin with uniform angular velocity. Equation (in polar coordinates): r = aθ.
spirits of hartshorn — a colorless, pungent, suffocating, aqueous solution of about 28.5 percent ammonia gas: used chiefly as a detergent, for removing stains and extracting certain vegetable coloring agents, and in the manufacture of ammonium salts.
splice the mainbrace — to issue and partake of an extra allocation of alcoholic spirits
spontaneous abortion — miscarriage (def 1).
spontaneous recovery — the reappearance of a response after its extinction has been followed by a period of rest
spontaneous-abortion — Also called voluntary abortion. the removal of an embryo or fetus from the uterus in order to end a pregnancy.
spotted crane's-bill — the American wild geranium, Geranium maculatum.
spread like wildfire — If something, especially news or a rumour, spreads like wildfire, it spreads extremely quickly.
square of opposition — a diagrammatic representation of the opposition of categorical propositions.
st.-germain-des-pres — an area in Paris, on the Left Bank.
star spangled banner — Stars and Stripes.
star-spangled banner — Stars and Stripes.
state highway patrol — a state's road traffic police
state representative — a person elected by a state to be a member of the House of Representatives
ste. anne de beaupre — a village in S Quebec, in SE Canada, on the St. Lawrence, NE of Quebec: Roman Catholic shrine.
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.
strawberry-raspberry — an arching, prickly, Japanese plant, Rubus illecebrosus, of the rose family, having an herbaceous stem, white, fragrant flowers, and large, edible, scarlet fruit.
subscription library — a commercial lending library
supersonic transport — a commercial jet airplane that can fly faster than the speed of sound. Abbreviation: SST.
supplementary angles — either of two angles that added together produce an angle of 180°.
switchboard operator — a person who operates an installation in a telephone exchange, office, hotel, etc, at which the interconnection of telephone lines is manually controlled
telesales department — the department of a company that deals with telesales
television programme — a programme broadcast on television
the (great) pyramids — the three large pyramids at Gîza, Egypt: the largest is the Pyramid of Khufu
the legal profession — the profession of law
third-party software — software created by programmers or publishers independent of the manufacturer of the hardware for which it is intended.
throw up one's hands — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
to disturb the peace — If someone is accused of disturbing the peace, they are accused of behaving in a noisy and offensive way in public.
to overstep the mark — If someone oversteps the mark, they behave in a way that is considered unacceptable.
to scrape the barrel — If you say that someone is scraping the barrel, or scraping the bottom of the barrel, you disapprove of the fact that they are using or doing something of extremely poor quality.
to spread your wings — If you spread your wings, you do something new and rather difficult or move to a new place, because you feel more confident in your abilities than you used to and you want to gain wider experience.
transformation point — a temperature at which the transformation of one microconstituent to another begins or ends during heating or cooling.
transposed conjugate — adjoint (def 2).
transposition cipher — a cipher that rearranges the letters of the plain text in a different sequence.
travel-sickness pill — a pill which is used to relieve the symptoms of travel or motion sickness, the condition of being nauseated from riding in a moving vehicle
tropical disturbance — a very weak, or incipient, tropical cyclone.
tropospheric scatter — transmission of radio frequency signals that have been scattered from irregularities in the troposphere to locations hundreds of kilometers distant.
trumpet call for sth — a signal for something
tubing head pressure — The tubing head pressure is the pressure on the tubing, which is measured at the wellhead.
turn an honest penny — to earn money fairly and honestly
upper yosemite falls — a section of Yosemite Falls in central California, in the Yosemite National Park that is 436 m (1430 ft) high
upset the apple cart — to disrupt a procedure, spoil someone's plans, etc.
video graphics array — (hardware) (VGA) A display standard for IBM PCs, with 640 x 480 pixels in 16 colours and a 4:3 aspect ratio. There is also a text mode with 720 x 400 pixels. IBM technical references define the *product name* of their original VGA display board as "Video Graphics Array", in contrast to the preceding boards, the "Color Graphics Adapter" (CGA) and "Enhanced Graphics Adapter" (EGA). See also Super Video Graphics Adapter.
western roman empire — the westernmost of the two empires created by the division of the later Roman Empire, esp after its final severance from the Eastern Roman Empire (395 ad)
winter olympic games — an international contest of winter sports, esp skiing, held every four years
with all due respect — despite my regard for you
working relationship — a relationship with a colleague, boss or employee

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