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12-letter words containing i, n, d, u, r

  • radiant flux — the time rate of flow of radiant energy.
  • radiolucency — almost entirely transparent to radiation; almost entirely invisible in x-ray photographs and under fluoroscopy.
  • radionuclide — a radioactive nuclide.
  • reacquainted — to make more or less familiar, aware, or conversant (usually followed by with): to acquaint the mayor with our plan.
  • reductionism — the theory that every complex phenomenon, especially in biology or psychology, can be explained by analyzing the simplest, most basic physical mechanisms that are in operation during the phenomenon.
  • reductionist — the theory that every complex phenomenon, especially in biology or psychology, can be explained by analyzing the simplest, most basic physical mechanisms that are in operation during the phenomenon.
  • reed bunting — an Old World bunting, Emberiza schoeniclus, inhabiting marshy areas.
  • refoundation — an act of refounding
  • reinstituted — to set up; establish; organize: to institute a government.
  • relinquished — to renounce or surrender (a possession, right, etc.): to relinquish the throne.
  • reproduction — the act or process of reproducing.
  • rescheduling — the act of changing the time, date, or schedule of
  • resoundingly — making an echoing sound: a resounding thud.
  • rice pudding — dessert made from rice and milk
  • ride shotgun — a smoothbore gun for firing small shots to kill birds and small quadrupeds, though often used with buckshot to kill larger animals.
  • rideau canal — a waterway in SE Ontario, Canada, connecting the Ottawa Riverin Ottawa to Lake Ontario in Kingston. 125 miles (202 km) long.
  • rockhounding — the activity of searching for and collecting rocks
  • round window — a membrane-covered opening in the inner wall of the middle ear that compensates for changes in cochlear pressure.
  • ruby wedding — a fortieth wedding anniversary
  • ruling elder — an elder in a Presbyterian church.
  • ruling grade — the steepest grade on a given stretch of track, which determines the maximum tonnage that can be hauled in a train having a given horsepower at a stated minimum speed.
  • running bond — a brickwork bond having successive courses of overlapping stretchers.
  • running hand — script or calligraphy characterized by uniformly slanted letters that are written quickly and connected by long, continuous strokes of the pen.
  • running head — a descriptive word, phrase, title, or the like, usually repeated at the top of each page of a book, periodical, etc.
  • russian doll — wooden figures that nest inside one other
  • rutlandshire — a former county, now part of Leicestershire, in central England.
  • samurai bond — a bond issued in Japan and denominated in yen, available for purchase by nonresidents of Japan
  • scouring pad — a small pad, as of steel wool or plastic mesh, used for scouring pots, pans, etc.
  • sendai virus — a paramyxovirus that tends to cause cell fusion: in inactive form, used in biological research to produce cells with multiple nuclei of different genetic constitutions.
  • series-wound — noting a commutator motor in which the field circuit and armature circuit are connected in series.
  • silver mound — a perennial Japanese herb, Artemisia schmidtiana, having silver-green leaves forming a moundlike shape.
  • sinus iridum — (Bay of Rainbows) a semicircular dark plain in the second quadrant of the face of the moon.
  • sliding rule — (formerly) a slide rule.
  • sniff around — dog: try to pick up scent
  • spiderhunter — any of several sunbirds of the genus Arachnothera, of southern Asia and the East Indies, having dull-colored plumage and a long bill.
  • spiral-bound — having a spiral binding.
  • spoil ground — an area within a body of water, especially in the sea, where dredged material is deposited.
  • squared ring — boxing ring.
  • stick around — to pierce or puncture with something pointed, as a pin, dagger, or spear; stab: to stick one's finger with a needle.
  • sub-industry — the aggregate of manufacturing or technically productive enterprises in a particular field, often named after its principal product: the automobile industry; the steel industry.
  • subarachnoid — of, relating to, or situated below the arachnoid membrane.
  • subintroduce — to introduce subtly
  • subordinated — placed in or belonging to a lower order or rank.
  • subordinator — a conjunction introducing a subordinate clause, as when in They were glad when I finished.
  • sulfarsenide — any compound containing an arsenide and a sulfide.
  • sunda strait — a strait between Sumatra and Java, connecting the Java Sea and the Indian Ocean. 20–65 miles (32–105 km) wide.
  • superevident — extremely or very evident
  • superkingdom — in some systems of biological classification, either of the two major subdivisions, prokaryote or eukaryote, into which all living organisms can be placed
  • superordinal — relating to the superorder
  • surfboarding — a long, narrow board on which a person stands or lies prone in surfboarding.
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