15-letter words containing a, n, t, i, s, u
- rocky mountains — mountain range in USA and Canada
- rogation sunday — the fifth Sunday after Easter; it sees the start of the supplications that are continued during the following Monday, Tuesday and Wednesday
- rubaiyat stanza — a quatrain patterned after those in The Rubáiyát of Omar Khayyám, of iambic pentameter and rhyming aaba.
- rudimentariness — the state or quality of being rudimentary
- russian thistle — a saltwort, Salsola kali tenuifolia, that has narrow, spinelike leaves, a troublesome weed in the central and western U.S.
- saint augustine — Saint, a.d. 354–430, one of the Latin fathers in the early Christian Church; author; bishop of Hippo in N Africa.
- saline solution — a solution of salt in water, esp one used medicinally or to keep contact lenses moist
- san luis potosi — a state in central Mexico. 24,415 sq. mi. (63,235 sq. km).
- santa gertrudis — one of an American breed of beef cattle, developed from Shorthorn and Brahman stock for endurance to torrid temperatures.
- sausage turning — turning of members to resemble a continuous row of sausages flattened at the ends.
- savings account — a bank account on which interest is paid, traditionally one for which a bankbook is used to record deposits, withdrawals, and interest payments.
- sayan mountains — a mountain range in S central Russia, in S Siberia. Highest peak: Munku-Sardyk, 3437 m (11 457 ft)
- scaling circuit — an electronic device or circuit that aggregates electric pulses and gives a single output pulse for a predetermined number of input pulses
- scatter cushion — Scatter cushions are small cushions for use on sofas and chairs.
- self-accusation — a charge of wrongdoing; imputation of guilt or blame.
- self-evaluation — an act or instance of evaluating or appraising.
- self-inductance — inductance inducing an electromotive force in the same circuit in which the motivating change of current occurs, equal to the number of flux linkages per unit of current.
- self-infatuated — to inspire or possess with a foolish or unreasoning passion, as of love.
- self-inoculated — to implant (a disease agent or antigen) in a person, animal, or plant to produce a disease for study or to stimulate disease resistance.
- self-mutilation — to injure, disfigure, or make imperfect by removing or irreparably damaging parts: Vandals mutilated the painting.
- self-regulating — adjusting, ruling, or governing itself without outside interference; operating or functioning without externally imposed controls or regulations: a self-regulating economy; the self-regulating market.
- self-regulation — control by oneself or itself, as in an economy, business organization, etc., especially such control as exercised independently of governmental supervision, laws, or the like.
- self-sustaining — self-supporting.
- semi-autonomous — acting independently to some degree
- semi-functional — of or relating to a function or functions: functional difficulties in the administration.
- semi-industrial — of, pertaining to, of the nature of, or resulting from industry: industrial production; industrial waste.
- semidocumentary — a film or television programme that is fictional but includes many factual events or details
- semimanufacture — a product which forms an intermediate stage in the manufacture of another, often more complex product
- semitranslucent — imperfectly or almost translucent.
- sesquicarbonate — a salt intermediate in composition between a carbonate and a bicarbonate or consisting of the two combined.
- sesquicentenary — a hundred and fiftieth anniversary
- simple equation — linear equation
- sir arthur john — Sir (Arthur) John, 1904–2000, English actor and director.
- sleeping beauty — a beautiful princess, the heroine of a popular fairy tale, awakened from a charmed sleep by the kiss of the prince who is her true love.
- slumpflationary — of or relating to slumpflation
- smoky mountains — Great Smoky Mountains
- snapping turtle — either of two large, edible, freshwater turtles of the family Chelydridae, of North and Central America, having a large head and powerful hooked jaws, especially the common snapping turtle, Chelydra serpentina.
- snowy mountains — a mountain range in SE Australia, part of the Australian Alps: famous hydroelectric scheme
- sodium arsenite — a white or grayish-white, water-soluble, poisonous powder, NaAsO 2 , used chiefly in arsenical soaps for hides, as an insecticide, and as a weed-killer.
- sodium benzoate — a white crystalline soluble compound used as an antibacterial and antifungal agent in preserving food (E211), as an antiseptic, and in making dyes and pharmaceuticals. Formula: (C6H5COO)Na
- sound-and-light — combining sound effects or music with unusual lighting displays: to promote a product with a spectacular sound-and-light presentation.
- south caucasian — a family of languages including Georgian, Mingrelian, and others that are spoken on the south slopes of the Caucasus and adjacent areas.
- south china sea — a part of the W Pacific, bounded by SE China, Vietnam, the Malay Peninsula, Borneo, and the Philippines.
- southeast asian — the countries and land area of Brunei, Burma, Cambodia, Indonesia, Laos, Malaysia, the Philippines, Singapore, Thailand, and Vietnam.
- southern paiute — See under Paiute (def 2).
- spanish customs — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
- special student — a student who is not seeking a degree but enrols in a course, esp to gain academic credits
- stable equation — a differential equation each solution of which tends to zero as the independent variable increases to infinity. Compare transient (def 6).
- stamping ground — a habitual or favorite haunt.
- stannic sulfide — a yellowish or brownish, water-insoluble powder, SnS 2 , usually used suspended in lacquer or varnish for gilding and bronzing metals, wood, paper, etc.; mosaic gold.