13-letter words containing a, r, k, s
- rainbow snake — a burrowing snake, Farancia erytrogramma, of the southeastern U.S., having red and black stripes along the body, a red and yellow underside, and a sharp-tipped tail used in maneuvering prey.
- raking course — a concealed course of bricks laid diagonally to the wall surface in a raking bond.
- rankine scale — William John Macquorn [muh-kwawrn] /məˈkwɔrn/ (Show IPA), 1820–70, Scottish engineer and physicist.
- ratushinskaya — Irina (ɪˈriːnə). born 1954, Russian poet and writer: imprisoned (1983–86) in a Soviet labour camp on charges of subversion. Her publications include Poems (1984), Grey is the Colour of Hope (1988), and The Odessans (1992)
- rayleigh disk — a small circular disk, usually of mica, that is suspended from a fiber and tends to be deflected at right angles to a stream of air, indicating by its deflection the intensity of a sound wave.
- reduce a risk — If you reduce a risk, you lessen the potential damage that could be caused by a hazard or danger.
- regent's park — a park in central London, laid out as Marylebone Park by John Nash; now known for the London Zoo, its open-air theatre, and Nash's curved terraces
- register mark — any of several marks incorporated onto printing plates to assist in the accurate positioning of images during printing
- requiem shark — any of numerous, chiefly tropical sharks of the family Carcharhinidae, including the tiger shark and soupfin shark.
- research park — an industrial park whose facilities are devoted to research and development.
- research work — work concerning research into or investigation into a subject, topic, etc, particularly in the sciences
- return thanks — (of Christians) to say grace before a meal
- rib eye steak — a large beefsteak cut from the outer, or eye, side of the ribs.
- rib-eye steak — a large beefsteak cut from the outer, or eye, side of the ribs.
- ring-streaked — having streaks or bands of color around the body.
- risk analysis — A risk analysis is a process of deciding how likely it is that injury, damage, or loss will happen, and what the effects will be if it does happen.
- risk aversion — a strong disinclination to take risks
- roanoke bells — a wild plant, Mertensia virginica, of the borage family, native to the eastern U.S., grown as a garden plant for its handsome, nodding clusters of blue flowers.
- roasting jack — a rotating spit for roasting meat on
- rocking shear — a shear having a curved blade that cuts with a rocking motion.
- rosenkavalier — an opera (1911) by Richard Strauss.
- safari jacket — bush jacket.
- saloon keeper — a person who owns or operates a saloon.
- salwar kameez — long tunic worn over a pair of baggy trousers
- sanction mark — a mark on pieces of 19th-century French furniture signifying that the piece met the quality standards required by the Parisian guild of ebonists
- schiller park — a town in NE Illinois.
- scissors jack — a horizontal screw that raises or lowers a hinged, diamond-shaped frame.
- sea buckthorn — a thorny Eurasian shrub, Hippophaë rhamnoides, growing on sea coasts and having silvery leaves and orange fruits: family Elaeagnaceae
- seckel (pear) — a small, sweet, juicy, reddish-brown pear
- security leak — a leak of information that could endanger public safety
- semi-darkness — partial darkness
- serial killer — anything published, broadcast, etc., in short installments at regular intervals, as a novel appearing in successive issues of a magazine.
- service break — an instance of a player winning a game against a server.
- shakespearean — of, relating to, or suggestive of Shakespeare or his works.
- shakespearian — of, relating to, or suggestive of Shakespeare or his works.
- shark biscuit — a bodyboard
- shark finning — the practice of catching sharks, removing their fins (which are commercially valuable) and throwing the rest of the shark back into the sea (often while it is still alive, but doomed to drown because it cannot swim without its fins)
- shark watcher — a business consultant who assists companies in identifying and preventing unwelcome takeover bids
- shelf-stacker — a person whose job is to fill the shelves and displays in a supermarket or other shop with goods for sale
- shilling mark — a virgule, as used as a divider between shillings and pence: One reads 2/6 as “two shillings and sixpence” or “two and six.”.
- shock therapy — (not in technical use) any of various therapies, as insulin shock therapy or electroconvulsive therapy, that induce convulsions or unconsciousness, used for symptomatic relief in certain mental disorders.
- shockumentary — a television programme showing members of the public in shocking or violent situations
- shulhan arukh — an authoritative code of Jewish law and custom compiled by the Talmudic scholar Joseph Caro (1488–1575), the original edition published in Vienna in 1565 emphasizing the practices of Sephardic Jews.
- single market — a market consisting of a number of nations, esp those of the European Union, in which goods, capital, and currencies can move freely across borders without tariffs or restrictions
- sirloin steak — cut of beef
- skateboarding — a device for riding upon, usually while standing, consisting of a short, oblong piece of wood, plastic, or aluminum mounted on large roller-skate wheels, used on smooth surfaces and requiring better balance of the rider than the ordinary roller skate does.
- skilled labor — labor that requires special training for its satisfactory performance.
- skin grafting — the transplanting of healthy skin from the patient's or another's body to a wound or burn, to form new skin.
- skin reaction — an irritation or inflammation of the skin due to an allergy or infection, brought about by natural means or by a skin test.
- smoke chamber — an enlarged area between the throat of a fireplace and the chimney flue.