17-letter words containing i, s, t, r
- spark transmitter — a transmitting set that generates electromagnetic waves by the oscillatory discharge from a capacitor through an inductor and a spark gap.
- spastic paralysis — a condition in which the muscles affected are marked by tonic spasm and increased tendon reflexes.
- spatial frequency — the measure of fine detail in an optical image in terms of cycles per millimetre
- spectroheliograph — an apparatus for making photographs of the sun with a monochromatic light to show the details of the sun's surface and surroundings as they would appear if the sun emitted only that light.
- spectrohelioscope — a spectroheliograph.
- spectromicroscope — a microscope with an attached spectroscope.
- spectroradiometer — an instrument for determining the radiant-energy distribution in a spectrum, combining the functions of a spectroscope with those of a radiometer.
- spectroscopically — an optical device for producing and observing a spectrum of light or radiation from any source, consisting essentially of a slit through which the radiation passes, a collimating lens, and an Amici prism.
- spectrum analysis — the determination of the constitution or condition of bodies and substances by means of the spectra they produce.
- spectrum disorder — any of a group of disorders each having symptoms that occur on a continuum and certain features that are shared along its spectrum but that manifest in markedly different forms and degrees. See also autism spectrum disorder.
- speech correction — the reeducation of speech habits that deviate from accepted speech standards.
- speed restriction — the maximum speed allowed for road vehicles, trains, or other vehicles
- spenserian sonnet — a sonnet employing the rhyme scheme abab, bcbc, cdcd, ee.
- spenserian stanza — the stanza used by Spenser in his Faerie Queene and employed since by other poets, consisting of eight iambic pentameter lines and a final Alexandrine, with a rhyme scheme of ababbcbcc.
- sperrin mountains — a mountain range in NW Northern Ireland
- spiritual bouquet — the spiritual presentation of a good work to another person.
- spiritual healing — faith healing
- spiritus frumenti — whiskey.
- split keyboarding — the act or practice of editing data from one terminal on another terminal
- split personality — multiple personality.
- sports facilities — places and things for doing sports
- spot-illustration — a rounded mark or stain made by foreign matter, as mud, blood, paint, ink, etc.; a blot or speck.
- spotted sandpiper — a North American sandpiper, Actitis macularia, that has brownish-gray upper parts and white underparts, and is spotted with black in the summer.
- square centimeter — a unit of area measurement equal to a square measuring one centimeter on each side. 2 , sq. cm. Abbreviation: cm.
- square millimeter — a unit of area measurement equal to a square measuring one millimeter on each side. 2 , sq. mm. Abbreviation: mm.
- square the circle — a rectangle having all four sides of equal length.
- squatter's rights — the rights to a property claimed by someone who has occupied it in the owner's absence
- sri international — (company) One of the world's largest contract research firms. Founded in 1946 in conjuction with Stanford University as the Stanford Research Institute, they later became fully independent and were incorporated as a non-profit organisation under U.S. and California laws. SRI does research and development in many areas, independently and for hire. They produce and sell reports on the independent research. Address: Menlo Park, California, USA; Cambridge, UK.
- st. crispin's day — October 25: anniversary of the Battle of Agincourt (1415).
- standard function — a subprogram provided by a translator that carries out a task, for example the computation of a mathematical function, such as sine, square root, etc
- stannous chloride — a white, crystalline, water-soluble solid, SnCl 2 ⋅2H 2 O, used chiefly as a reducing and tinning agent, and as a mordant in dyeing with cochineal.
- stannous fluoride — a white, crystalline powder, SnF 2 , slightly soluble in water: used as a source of fluorine in the prevention of dental caries, especially as a toothpaste additive.
- stare in the face — to gaze fixedly and intently, especially with the eyes wide open.
- stars and stripes — US national flag
- state legislature — laws of a country
- stationary engine — an engine mounted in a fixed position, as one used for driving generators, compressors, etc.
- statue of liberty — a large copper statue, on Liberty Island, in New York harbor, depicting a woman holding a burning torch: designed by F. A. Bartholdi and presented to the U.S. by France; unveiled 1886.
- statutory holiday — a public holiday; a holiday all workers are entitled to
- statutory meeting — company shareholders' discussion
- steamboat springs — a town in NW Colorado: ski resort.
- steering geometry — Steering geometry is the geometric arrangement of the parts of a steering system, and the value of the lengths and angles within it.
- stellar evolution — the sequence of changes that occurs in a star as it ages
- stenothermophilic — growing best within a narrow temperature range.
- stereolithography — a process for creating three-dimensional objects using a computer-controlled laser to build up the required structure, layer by layer, from a liquid photopolymer that solidifies.
- stereospecificity — (of a reaction) producing a simple stereoisomer.
- stick to the ribs — to pierce or puncture with something pointed, as a pin, dagger, or spear; stab: to stick one's finger with a needle.
- stir one's stumps — to move or become active
- stochastic matrix — a square matrix with positive entries totaling 1 in each row.
- stock certificate — a certificate evidencing ownership of one or more shares of stock in a corporation.
- stolen generation — Aboriginal children removed from their families and placed in institutions or fostered by White families between 1910 and 1970