12-letter words containing r, a, i, s, e, o
- ribonuclease — any of the class of enzymes that catalyze the hydrolysis of RNA.
- rio gallegos — a seaport in S Argentina, in S Patagonia.
- roasting ear — an ear of sweet corn suitable for roasting while still in the husk.
- rock jasmine — any of several alpine plants belonging to the genus Androsace, of the primrose family, having tufted leaves often in basal rosettes, and umbels of pink, red, purple, or white flowers.
- roman strike — a striking mechanism of c1700, giving the equivalent in tones of Roman numerals, a bell of one pitch striking once for each number I, a bell of another pitch striking once for V, twice for X.
- rooseveltian — of, pertaining to, advocating, or following the principles, views, or policies of Franklin Delano Roosevelt or of Theodore Roosevelt.
- rooster tail — the wake thrown up behind a speeding boat or the dust thrown up behind a speeding vehicle.
- rose campion — a plant, Lychnis coronaria, of the pink family, having reddish purple flowers, and leaves covered with whitish down.
- rose diamond — a diamond, one side of which is flat, and the other cut into twenty-four triangular facets in two ranges which form a convex face pointed at the top
- rose pogonia — a North American terrestrial orchid, Pogonia ophioglossoides, having a fragrant, usually solitary rose-pink or white flower.
- royal tennis — court tennis.
- russian zone — a zone in Germany controlled by the Soviet Union 1945–89.
- sacrilegious — pertaining to or involving sacrilege: sacrilegious practices.
- saffron rice — a dish made from white rice and flavoured with the spice saffron
- saint jerome — Saint (Eusebius Hieronymus) a.d. c340–420, Christian ascetic and Biblical scholar: chief preparer of the Vulgate version of the Bible.
- saint-tropez — a town in SE France, on the French Riviera: beach resort.
- salutiferous — salutary.
- sanguiferous — conveying blood, as a blood vessel.
- satin-flower — a Californian plant, Clarkia amoena, of the evening primrose family, having cup-shaped pink or purplish flowers blotched with red.
- savoir faire — knowledge of just what to do in any situation; tact.
- savoir-faire — knowledge of just what to do in any situation; tact.
- savoir-vivre — knowledge of the world and the ways or usages of polite society.
- scatteration — the act of scattering.
- scenographic — the art of representing objects in accordance with the rules of perspective.
- scopes trial — John Thomas, 1901–70, U.S. high-school teacher whose teaching of the Darwinian theory of evolution became a cause célèbre (Scopes Trial or Monkey Trial) in 1925.
- scrieveboard — the drawing board of a shipbuilder
- scrive board — a floorlike construction on which the lines of a vessel can be drawn or scribed at full size.
- scrobiculate — furrowed or pitted.
- sea crossing — a journey by sea from one coast to another
- sea milkwort — a maritime plant, Glaux maritima, having small, pinkish-white flowers.
- sea scorpion — scorpionfish.
- secobarbital — a white, odorless, slightly bitter powder, C 1 2 H 1 8 N 2 O 3 , used as a sedative and hypnotic.
- section mark — section (def 16).
- seismography — the scientific measuring and recording of the shock and vibrations of earthquakes.
- semi-dormant — lying asleep or as if asleep; inactive, as in sleep; torpid: The lecturer's sudden shout woke the dormant audience.
- semi-organic — noting or pertaining to a class of chemical compounds that formerly comprised only those existing in or derived from plants or animals, but that now includes all other compounds of carbon.
- semi-popular — regarded with favor, approval, or affection by people in general: a popular preacher.
- semiarboreal — (of animals) spending half or some of their life in trees
- semiglobular — possessing the form of half a globe; hemispheric.
- semitropical — subtropical.
- senarmontite — a mineral, antimony trioxide, Sb 2 O 3 , occurring in pearl-colored isometric octahedrons: a dimorph of valentinite.
- serial bonds — Serial bonds are bonds that are issued at the same time but have staggered maturity dates.
- serial comma — a comma used after the next-to-last item in a series of three or more items when the next-to-last and last items are separated by a conjunction. In the series A, B, C, or D, the comma after C is the series comma.
- seronegative — showing no significant level of serum antibodies, or other immunologic marker in the serum, that would indicate previous exposure to the infectious agent being tested.
- seroreaction — any reaction occurring in serum.
- service road — frontage road.
- servicewoman — a woman who is a member of the armed forces of a country.
- shadow price — the calculated price of a good or service for which no market price exists
- share option — A share option is an opportunity for the employees of a company to buy shares at a special price.
- shared logic — the sharing of a central processing unit and associated software among several terminals