12-letter words containing a, r, i, o, u, s
- rambunctious — difficult to control or handle; wildly boisterous: a rambunctious child.
- reassumption — the act or process of reassuming something
- restauration — restoration
- resupination — a resupinate condition.
- resuscitator — a person or thing that resuscitates.
- rhizocarpous — having the root perennial but the stem annual, as perennial herbs.
- rhizophagous — feeding on roots.
- ribonuclease — any of the class of enzymes that catalyze the hydrolysis of RNA.
- russian doll — wooden figures that nest inside one other
- russian zone — a zone in Germany controlled by the Soviet Union 1945–89.
- sacrilegious — pertaining to or involving sacrilege: sacrilegious practices.
- sail through — If someone or something sails through a difficult situation or experience, they deal with it easily and successfully.
- salutatorian — (in some U.S. schools and colleges) the student ranking second highest in the graduating class, who delivers the salutatory at commencement.
- salutatorium — a porch or room in a monastery or church serving as a meeting or almsgiving place for monks or priests and the laity.
- salutiferous — salutary.
- samurai bond — a bond issued in Japan and denominated in yen, available for purchase by nonresidents of Japan
- sanguiferous — conveying blood, as a blood vessel.
- sanguivorous — feeding on blood, as a bat or insect.
- saronic gulf — an inlet of the Aegean, on the SE coast of Greece, between Attica and the Peloponnesus. 50 miles (80 km) long; 30 miles (48 km) wide.
- scouring pad — a small pad, as of steel wool or plastic mesh, used for scouring pots, pans, etc.
- scrobiculate — furrowed or pitted.
- scrophularia — a member of a genus of flowering plants which have a square stem and are known as figworts
- semi-popular — regarded with favor, approval, or affection by people in general: a popular preacher.
- semiglobular — possessing the form of half a globe; hemispheric.
- short radius — the perpendicular distance from the centre of a regular polygon to a side
- sinanthropus — the genus to which Peking man was formerly assigned.
- sniff around — dog: try to pick up scent
- sofa surfing — (of a homeless person) the practice of staying temporarily with various friends and relatives while attempting to find permanent accommodation
- solar radius — the unit, equivalent to the radius of the sun, in which the radii of stars and other celestial objects are given.
- south africa — Republic of, a country in S Africa; member of the Commonwealth of Nations until 1961. 472,000 sq. mi. (1,222,480 sq. km). Capitals: Pretoria and Cape Town.
- south arabia — Protectorate of, a former protectorate of Great Britain in S Arabia, now part of the Republic of Yemen.
- spermagonium — Botany, Mycology. spermogonium.
- spiral-bound — having a spiral binding.
- sporangiolum — a small sporangium
- square piano — a piano with a rectangular, horizontal body.
- stanniferous — containing tin; tin-bearing
- stauropegion — (in an autocephalous church) a monastery subject directly to the primate.
- stegosaurian — having the characteristics of a stegosaur
- stereoacuity — the ability of a person to see objects as separate entities along a range of distances
- sternutation — the act of sneezing.
- stick around — to pierce or puncture with something pointed, as a pin, dagger, or spear; stab: to stick one's finger with a needle.
- storage unit — rented space to store items
- straight out — thoroughgoing: a straight-out Democrat.
- straight-out — without a bend, angle, or curve; not curved; direct: a straight path.
- sub-tropical — Sub-tropical places have a climate that is warm and wet, and are often near tropical regions.
- subarachnoid — of, relating to, or situated below the arachnoid membrane.
- subarcuation — a structure that is somewhat arched
- subeditorial — of or relating to a subeditor, the work of a subeditor or a subeditorship
- suberization — the impregnation of cell walls with suberin, causing the formation of cork.
- subfactorial — the number of ways a group of objects can be arranged so that none of the objects are in their original or correct place