15-letter words containing n, o, s, t, r, a
- station officer — a person who is in charge of a fire station
- stationary wave — standing wave.
- steam generator — steam-producing power plant
- steam reforming — a process in which methane from natural gas is heated, with steam, usually with a catalyst, to produce a mixture of carbon monoxide and hydrogen used in organic synthesis and as a fuel
- storm insurance — insurance cover against damage caused by windstorms
- strait of canso — a channel in Canada, between the Nova Scotia mainland and S Cape Breton Island
- strait of tiran — a strait between the Gulf of Aqaba and the Red Sea. Length: 16 km (10 miles). Width: 8 km (5 miles)
- strawberry roan — a horse with a reddish coat that is liberally flecked with white hairs.
- streamline flow — the flow of a fluid past an object such that the velocity at any fixed point in the fluid is constant or varies in a regular manner.
- stretch a point — a sharp or tapering end, as of a dagger.
- structural iron — iron shaped for use in construction.
- sub-corporation — an association of individuals, created by law or under authority of law, having a continuous existence independent of the existences of its members, and powers and liabilities distinct from those of its members. See also municipal corporation, public corporation.
- subcontraoctave — the octave below the contraoctave, which is three octaves below the middle C octave on a standard keyboard
- suborganization — an organization within a larger organization
- substitutionary — a person or thing acting or serving in place of another.
- subtrochanteric — Anatomy. either of two knobs at the top of the femur, the greater on the outside and the lesser on the inside, serving for the attachment of muscles between the thigh and pelvis.
- suburbanization — to give suburban characteristics to: to suburbanize a rural area.
- sunflower state — Kansas (used as a nickname).
- superexaltation — extreme or supreme exaltation; the act of superexalting; the process or condition of being superexalted
- superexcitation — the act of exciting.
- superior planet — any of the five planets whose orbits are outside the orbit of the earth, namely, the planets Mars, Jupiter, Saturn, Uranus, and Neptune.
- superordination — Logic. the relation between a universal proposition and a particular proposition of the same quality containing the same terms in the same order.
- surface tension — the elasticlike force existing in the surface of a body, especially a liquid, tending to minimize the area of the surface, caused by asymmetries in the intermolecular forces between surface molecules.
- swallow-tanager — a tropical American bird, Tersina viridis, related to the true tanagers but with longer, swallowlike wings.
- tailor's bunion — a bunionlike enlargement of the joint of the little toe, usually caused by pressure from tight shoes.
- take one's hour — to do something in a leisurely manner
- take one's word — a unit of language, consisting of one or more spoken sounds or their written representation, that functions as a principal carrier of meaning. Words are composed of one or more morphemes and are either the smallest units susceptible of independent use or consist of two or three such units combined under certain linking conditions, as with the loss of primary accent that distinguishes black·bird· from black· bird·. Words are usually separated by spaces in writing, and are distinguished phonologically, as by accent, in many languages.
- tatra mountains — a mountain range along the border between Slovakia and Poland, extending for about 64 km (40 miles): the highest range of the central Carpathians. Highest peak: Gerlachovka, 2663 m (8737 ft)
- teamsters union — the unofficial name of the International Brotherhood of Teamsters, Chauffeurs, Warehousemen, and Helpers of America.
- tear one's hair — the act of tearing.
- temerariousness — the state or condition of being audacious
- tensor analysis — the branch of mathematics dealing with the calculus of tensors, especially the study of properties that are unaffected by a change of coordinate system.
- tentaculiferous — having tentacles
- terminator seed — a seed that produces sterile plants, used in some genetically modified crops so that a new supply of seeds has to be bought every year
- tetrasporangium — a sporangium containing four asexual spores.
- thanks offering — an offering made as an expression of thanks to God
- thankworthiness — the state or quality of being thankworthy or deserving thanks
- the anglo-irish — the inhabitants of Ireland of English birth or descent
- the lower ranks — people who have a low rank in a military organization
- the restoration — the reestablishment of the monarchy in England in 1660 under Charles II
- the smart money — If you say that the smart money is on a particular person or thing, you mean that people who know a lot about it think that this person will be successful, or this thing will happen.
- thorndike's law — the principle that all learnt behaviour is regulated by rewards and punishments, proposed by Edward Lee Thorndike (1874–1949), US psychologist
- tirso de molina — Luis [loo-ees] /luˈis/ (Show IPA), 1535–1600, Spanish Jesuit theologian.
- to earn a crust — If you earn a crust, you earn enough money to live on, especially by doing work you would prefer not to do.
- to err is human — If you say that to err is human, you mean that it is natural for human beings to make mistakes.
- to make friends — If you make friends with someone, you begin a friendship with them. You can also say that two people make friends.
- torsion balance — an instrument for measuring small forces, as electric attraction or repulsion, by determining the amount of torsion or twisting they cause in a slender wire or filament.
- totalitarianism — the practices and principles of a totalitarian regime.
- totalitarianist — the practices and principles of a totalitarian regime.
- toucan crossing — a place where people who are walking and cyclists can both cross a busy road together. They press a button at the side of the road, which operates traffic lights to stop the traffic