19-letter words containing c, o, s, t, u, i
- quantum electronics — the application of quantum mechanics and quantum optics to the study and design of electronic devices
- radius of curvature — the absolute value of the reciprocal of the curvature at a point on a curve.
- relational calculus — (database) An operational methodolgy, founded on predicate calculus, dealing with descripitive expressions that are equivalent to the operations of relational algebra. Codd's reduction algorithm can convert from relational calculus to relational algebra. Two forms of the relational calculus exist: the tuple calculus and the domain calculus.
- religious education — religion as school subject
- republic of letters — the collective body of literary people.
- reserved occupation — in time of war, an occupation from which one will not be called up for military service
- restorative justice — a theory and method in criminal justice in which it is arranged that the victim and the community receive restitution from the offender.
- rhetorical question — a question asked solely to produce an effect or to make an assertion and not to elicit a reply, as “What is so rare as a day in June?”.
- san juan capistrano — a city in SW California: site of old Spanish mission; known for annual return of swallows, said to occur on March 19.
- saturation coverage — news coverage (of an event, etc) that is very thorough in order not to miss any details
- scattersite housing — public housing, especially for low-income families, built throughout an urban area rather than being concentrated in a single neighborhood.
- screen actors guild — a labor union for motion-picture performers, founded in 1933. Abbreviation: SAG.
- secondary education — education at high-school level
- secondary qualities — one of the qualities attributed by the mind to an object perceived, such as color, temperature, or taste.
- seleucia tracheotis — an ancient city in SE Asia Minor, on the River Calycadnus (modern Goksu Nehri): captured by the Turks in the 13th century; site of present-day Silifke (Turkey)
- self-congratulating — the expression or feeling of uncritical satisfaction with oneself or one's own accomplishment, good fortune, etc.; complacency.
- self-congratulation — the expression or feeling of uncritical satisfaction with oneself or one's own accomplishment, good fortune, etc.; complacency.
- self-reconstruction — an act of reconstructing.
- semibituminous coal — a coal intermediate between bituminous and anthracite coal in hardness, yielding the maximum heat of any ordinary steam coal.
- semiconductor laser — a laser in which a semiconductor is the light-emitting source, used in many medical procedures.
- senatorial courtesy — the practice in the U.S. Senate of confirming only those presidential appointees approved by both senators from the state of the appointee, or by the senior senator of the president's party.
- sensitometric curve — characteristic curve.
- sentential function — an expression that contains one or more variables and becomes meaningful when suitable constant terms are substituted for them.
- sexual inter-course — genital contact, especially the insertion of the penis into the vagina followed by orgasm; coitus; copulation.
- sexual reproduction — reproduction involving the union of gametes.
- smokestack industry — A smokestack industry is a traditional industry such as heavy engineering or manufacturing, rather than a modern industry such as electronics.
- social security act — a law passed in 1935 providing old-age retirement insurance, a federal-state program of unemployment compensation, and federal grants for state welfare programs.
- sodium hypochlorite — a pale-green, crystalline compound, NaOCl, unstable in air, soluble in cold water, decomposes in hot water: used as a bleaching agent for paper and textiles, in water purification, in household use, and as a fungicide.
- sodium metasilicate — a white, granular sodium silicate, Na 2 SiO 3 , soluble in water: used in detergents and in bleaching and cleaning products.
- south african dutch — the Boers.
- south pacific ocean — the part of the Pacific Ocean extending S from the Equator to the Antarctic continent.
- south san francisco — a city in central California.
- specular reflection — Specular reflection is reflection of heat or light in which the angles of different parts of the surface are important.
- speculative fiction — a broad literary genre encompassing any fiction with supernatural, fantastical, or futuristic elements
- stationery cupboard — a cupboard where things like paper, pens and paper clips are kept
- stick to one's guns — a weapon consisting of a metal tube, with mechanical attachments, from which projectiles are shot by the force of an explosive; a piece of ordnance.
- strict counterpoint — the application of the rules of counterpoint as an academic exercise
- subsistence economy — an economy which produces only enough output for its own consumption and does not attempt to accumulate wealth
- substitution cipher — a cipher that replaces letters of the plain text with another set of letters or symbols.
- subtractive process — a process of color photography in which the colors are formed by combination of cyan, yellow, and magenta lights.
- superiority complex — an exaggerated feeling of one's own superiority.
- swimming instructor — sb who teaches people to swim
- tehachapi mountains — a transverse (E–W) mountain range in S central California. Highest peak, Double Mountain, 7982 feet (2433 meters).
- telescopic umbrella — an umbrella having parts that telescope
- the compassion club — (in Canada) a nonprofit organization that provides uncontaminated cannabis for medical purposes and natural therapies in a safe environment
- the finishing touch — If you add the finishing touches to something, you add or do the last things that are necessary to complete it.
- theological virtues — one of the three graces: faith, hope, or charity, infused into the human intellect and will by a special grace of God.
- to be up shit creek — to be in an extremely bad situation
- to click your heels — If someone such as a soldier clicks their heels, they make a sound by knocking the heels of their shoes together when saluting or greeting someone.
- to lick your wounds — If you say that someone is licking their wounds, you mean that they are recovering after being defeated or made to feel ashamed or unhappy.