12-letter words containing r, a, d, i, u, s
- radicivorous — feeding on the roots of plants
- radio source — a cosmic object or phenomenon, as a galaxy, pulsar, quasar, or the remnant of a supernova or of a galactic collision, that emits radio waves.
- res judicata — a thing adjudicated; a case that has been decided.
- 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
- saudi arabia — a kingdom in N and central Arabia, including Hejaz, Nejd, and dependencies. About 600,000 sq. mi. (1,554,000 sq. km). Capital: Riyadh.
- scouring pad — a small pad, as of steel wool or plastic mesh, used for scouring pots, pans, etc.
- scratchbuild — to build a scale model of something from scratch, that is, from raw materials like wood, clay or paper
- 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.
- short radius — the perpendicular distance from the centre of a regular polygon to a side
- slide guitar — bottleneck (def 3).
- sniff around — dog: try to pick up scent
- solar radius — the unit, equivalent to the radius of the sun, in which the radii of stars and other celestial objects are given.
- spiral-bound — having a spiral binding.
- 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.
- stradivarius — a violin or other instrument made by Stradivari or his family.
- subarachnoid — of, relating to, or situated below the arachnoid membrane.
- subeditorial — of or relating to a subeditor, the work of a subeditor or a subeditorship
- subepidermal — just below the epidermis or skin
- suberic acid — a crystalline dibasic acid, C 8 H 1 4 O 4 , obtained especially from suberin, castor oil, and cork: used chiefly in the preparation of plastics and plasticizers.
- subjudiciary — the judicial branch of government.
- 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.
- subsidiarily — serving to assist or supplement; auxiliary; supplementary.
- subsidiarity — secondary importance
- sudoriparous — producing or secreting sweat.
- sugar glider — a gliding possum, Petaurus breviceps, inhabiting open forests of New Guinea, Tasmania, and Australia.
- 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.
- superordinal — relating to the superorder
- surfboarding — a long, narrow board on which a person stands or lies prone in surfboarding.
- surinam toad — a South American aquatic frog, Pipa pipa, the female of which carries the eggs and tadpoles in small depressions on its back.
- swiss guards — a corps of Swiss mercenary soldiers, esp. those hired as Vatican bodyguards to the pope
- traducianism — the doctrine that the human soul is propagated along with the body. Compare creationism (def 3).
- transduction — the transfer of genetic material from one cell to another by means of a virus.
- translucidus — (of a cloud) sufficiently transparent as not to obscure the sun, moon, or higher clouds.
- transudation — the act or process of transuding.
- trepidatious — tremulous fear, alarm, or agitation; perturbation.
- triadelphous — (of stamens) united by the filaments into three sets or bundles.
- tricuspidate — having three cusps or flaps.
- truk islands — a group of islands in the W Pacific, in the E Caroline Islands: administratively part of the US Trust Territory of the Pacific Islands from 1947; became self-governing in 1979 as part of the Federated States of Micronesia; consists of 11 chief islands; a major Japanese naval base during World War II. Pop: 53 381 (2006). Area: 130 sq km (50 sq miles)
- ultradistant — extremely distant
- unadvertised — to announce or praise (a product, service, etc.) in some public medium of communication in order to induce people to buy or use it: to advertise a new brand of toothpaste.
- underpassion — an underlying or subconscious passion
- undersealing — the process of applying a coating of underseal to a motor vehicle
- understating — to state or represent less strongly or strikingly than the facts would bear out; set forth in restrained, moderate, or weak terms: The casualty lists understate the extent of the disaster.
- undertakings — the act of a person who undertakes any task or responsibility.
- undespairing — not despairing; not giving in to despair