17-letter words containing s, p, r, o
- sleep deprivation — a condition in which you have not had enough sleep
- sleeper terrorist — a terrorist who is not currently active but assumes a guise in order to be in position, unsuspected, for future terrorist activities
- sleeping problems — difficulties in getting to sleep or in staying asleep
- slip-joint pliers — pliers having a sliding joint, permitting the span of the jaws to be adjusted.
- social enterprise — a business organization that works to benefit society as a whole
- sodium propionate — a transparent, crystalline, water-soluble powder, C 3 H 5 NaO 2 , used in foodstuffs to prevent mold growth, and in medicine as a fungicide.
- sodium pyroborate — borax1 .
- sodium-vapor lamp — an electric lamp in which sodium vapor is activated by current passing between two electrodes, producing a yellow, glareless light: used on streets and highways.
- software platform — a major piece of software, as an operating system, an operating environment, or a database, under which various smaller application programs can be designed to run.
- sound spectrogram — a graphic representation, produced by a sound spectrograph, of the frequency, intensity, duration, and variation with time of the resonance of a sound or series of sounds.
- southampton water — an inlet of the English Channel in S England
- southern sporades — a group of Greek islands in the Aegean, including the Dodecanese, lying off the SW coast of Turkey
- spark photography — photography of fast-moving objects, as bullets, by the light of an electric spark.
- 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.
- spectrophotometer — an instrument for making photometric comparisons between parts of spectra.
- spectrophotometry — an instrument for making photometric comparisons between parts of spectra.
- 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 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.
- sperrin mountains — a mountain range in NW Northern Ireland
- spherical polygon — a closed figure formed by arcs of great circles on a spherical surface.
- spiny-headed worm — any of a small group of endoparasites of the phylum Acanthocephala, as larvae parasitic in insects and crustaceans and as adults in various vertebrates.
- spiritual bouquet — the spiritual presentation of a good work to another person.
- split keyboarding — the act or practice of editing data from one terminal on another terminal
- split personality — multiple personality.
- spongy parenchyma — the lower layer of the ground tissue of a leaf, characteristically containing irregularly shaped cells with relatively few chloroplasts and large intercellular spaces.
- spore mother cell — a cell from which a spore is produced
- 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.
- spread your wings — if you spread your wings, you do something new and rather difficult or move to a new place, because you feel more confident in your abilities than you used to and you want to gain wider experience
- spring cankerworm — the striped, green caterpillar of any of several geometrid moths: a foliage pest of various fruit and shade trees, as Paleacrita vernata (spring cankerworm) and Alsophila pometaria (fall cankerworm)
- steamboat springs — a town in NW Colorado: ski resort.
- 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.
- stereophotography — photography producing stereoscopic images.
- stereospecificity — (of a reaction) producing a simple stereoisomer.
- stir one's stumps — to move or become active
- storm in a teacup — a violent fuss or disturbance over a trivial matter
- subscription rate — the price charged for a subscription
- sulfurated potash — a yellowish-brown mixture consisting mainly of potassium polysulfides and potassium thiosulfate, used in treating mange.
- super-nationalism — an extreme or fanatical loyalty or devotion to a nation.
- superaerodynamics — the branch of aerodynamics that deals with gases at very low densities.
- superalimentation — nourishment; nutrition.
- supercolumniation — the placing of one order of columns above another.