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.