21-letter words containing a, g, l, s
- san gabriel mountains — a mountain range in S California, N of Los Angeles. Highest peak, San Antonio Peak, 10,080 feet (3072 meters).
- schlieren photography — a type of photography which records schlieren
- sealed-beam headlight — a headlight in which the reflector and lens are hermetically sealed together with the filament in a single unit.
- secure hash algorithm —
- seven-segment display — (electronics) (SSD) A kind of display element consisting of seven independently controllable lines arranged as a rectangular figure eight. A seven-segment display is the simplest device that can display any of the digits zero to nine (and some other characters) by lighting different combinations of lines. They are often seen in electronic calculators or measuring equipment.
- signal-to-noise ratio — the ratio of one parameter, such as power of a wanted signal to the same parameter of the noise at a specified point in an electronic circuit, etc
- simple actor language — (language) (SAL) A minimal actor language, used for teaching in:
- single parent benefit — a form of government funded financial assistance paid to single parents
- single spanish burton — a tackle having a runner as well as the fall supporting the load, giving a mechanical advantage of three, neglecting friction.
- siren call/siren song — A siren call or siren song is the appeal that something has although it is harmful or dangerous.
- social anthropologist — an anthropologist who deals with cultural and social phenomena such as kinship systems or beliefs, esp of nonliterate peoples
- sovereign wealth fund — an investment fund created using the financial assets of a national government
- spin angular momentum — to make (yarn) by drawing out, twisting, and winding fibers: Pioneer women spun yarn on spinning wheels.
- split-finger fastball — a type of fastball that sinks abruptly as it nears home plate, thrown with the grip used for a forkball
- stained glass ceiling — a situation in a church organization in which promotion for a female member of the clergy appears to be possible, but discrimination prevents it
- stem-and-leaf diagram — a histogram in which the data points falling within each class interval are listed in order
- structural psychology — psychology centering on the analysis of the structure or content of conscious mental states by introspective methods.
- submerged arc welding — a type of heavy electric-arc welding using mechanically fed bare wire with the arc submerged in powdered flux to keep out oxygen
- supergranulation cell — one of a number of large convection cells in the photosphere and chromosphere of the sun, each having a diameter of 10,000–20,000 miles (16,000–32,000 km) and lasting longer than a day.
- television evangelist — a Christian minister who devotes time to preaching on television
- the royal scots greys — (formerly) a British cavalry regiment, the Second Dragoons
- threshold wage policy — a policy whereby wages are increased in accordance with inflation
- to lay something bare — If you lay something bare, you uncover it completely so that it can then be seen.
- to move the goalposts — If you accuse someone of moving the goalposts, you mean that they have changed the rules in a situation or an activity, in order to gain an advantage for themselves and to make things difficult for other people.
- to rear its ugly head — If something unpleasant rears its head or rears its ugly head, it becomes visible or noticeable.
- topgallant forecastle — a partial weather deck on top of a forecastle superstructure; forecastle deck.
- total recoverable gas — Total recoverable gas is the amount of gas which is still left in the ground in gas fields that have already been worked.
- traveling salesperson — a representative of a business firm who travels in an assigned territory soliciting orders for a company's services.
- triangulation station — a point used in triangulation as a basis for making maps. Triangulation stations are marked in a number of ways, such as by a tapering stone pillar on a hilltop
- tubercular meningitis — an infection of the membranes of the central nervous system caused by the bacterium Mycobacterium tuberculosis; features can include fever, headache, and coma
- undesirable discharge — a discharge under other than honorable conditions of a person from military service by administrative action.
- venus's looking glass — a purple-flowered campanulaceous plant, Legousia hybrida, of Europe, W Asia, and N Africa
- vladivostok agreement — a preliminary arms control accord concluded by Soviet leader Leonid Brezhnev and U.S. President Gerald Ford in Vladivostok, U.S.S.R., in December 1974.
- watenstedt-salzgitter — former name of Salzgitter.
- weinberg-salam theory — electroweak theory.
- whistling in the dark — If you say that someone is whistling in the dark, you mean that they are trying to remain brave and convince themselves that the situation is not as bad as it seems.
- x-ray crystallography — the determination of the structure of a crystal by the use of x-ray diffraction.