21-letter words containing i, s, o, l

space shuttle orbiter — orbiter (def 1).
special correspondent — a journalist who covers stories firsthand from a war zone
special court-martial — a court-martial established to try violations of military law less serious than those tried by a general court-martial but more serious than those tried by a summary court-martial.
spherical coordinates — Usually, spherical coordinates. any of three coordinates used to locate a point in space by the length of its radius vector and the angles this vector makes with two perpendicular polar planes.
spicebush swallowtail — a swallowtail butterfly, Papilio troilus, having a dark body with yellow spots on the forewings and greenish hind wings.
spin angular momentum — to make (yarn) by drawing out, twisting, and winding fibers: Pioneer women spun yarn on spinning wheels.
sport utility vehicle — a rugged vehicle with a trucklike chassis and four-wheel drive, designed for occasional off-road use. Abbreviation: SUV.
sport-utility vehicle — a rugged vehicle with a trucklike chassis and four-wheel drive, designed for occasional off-road use. Abbreviation: SUV.
spotted alfalfa aphid — a pale yellowish aphid, Therioaphis maculata, of the southern U.S., especially west of the Mississippi River, that is marked with black spots and has fine spines on its back: a pest mainly of alfalfa and some other legumes, as clover.
stabilization-process — the act or process of stabilizing or the state of being stabilized.
statutory declaration — a declaration made under statutory authority before a justice of the peace or commissioner for oaths which may in certain cases be substituted for a statement on oath
stock list department — (in an American stock exchange) the department dealing with monitoring compliance with its listing requirements and rules
stop loss reinsurance — Stop loss reinsurance is a form of reinsurance under which the reinsurer pays the cedant's losses in any year over a particular percentage of the earned premium.
subjective complement — subject complement.
subliminal perception — perception of or reaction to a stimulus that occurs without awareness or consciousness
subsistence allowance — money given in advance to a new soldier, employee, etc., to buy food, clothing, and pay for other necessities while awaiting a first pay.
summary court-martial — a court-martial composed of one commissioned officer, authorized to try minor offenses against military law.
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.
supply-side economics — a school of economic thought that emphasizes the importance to a strong economy of policies that remove impediments to supply
surface of revolution — a surface formed by revolving a plane curve about a given line.
systeme international — Système International d'Unités
take one's (own) life — to commit suicide
take sb/sth seriously — If you take someone or something seriously, you believe that they are important and deserve attention.
tartarian honeysuckle — an Asian honeysuckle, Lonicera tatarica, having fragrant, white to pink flowers.
television evangelist — a Christian minister who devotes time to preaching on television
terrestrial radiation — long-wave electromagnetic radiation in the form of heat emitted from the earth's surface and atmosphere.
terrestrial telescope — a refracting telescope having inverting lenses or an eyepiece that presents an erect image.
tetrabromofluorescein — eosin (def 1).
the antipodes islands — a group of small uninhabited islands in the South Pacific, southeast of and belonging to New Zealand. Area: 62 sq km (24 sq miles)
the barber of seville — Italian Il barbiere di Siviglia. a comic opera (1816) by Gioacchino Rossini based on a comedy (1775) by Beaumarchais.
the central provinces — the Canadian provinces of Ontario and Quebec
the jury is still out — it has not yet been decided or agreed on
the oldest profession — prostitution
theoretical physicist — a scientist who studies theoretical physics
thermal decomposition — Thermal decomposition is the process in which a chemical species breaks down when its temperature is increased.
thermal power station — a power station in which heat is converted into electricity
threshold wage policy — a policy whereby wages are increased in accordance with inflation
to be a hospital case — if you say that someone or something is a hospital case, you mean that they need urgent help because they are doing very badly
to blow sth wide open — to expose something
to dig one's heels in — If you dig your heels in or dig in your heels, you refuse to do something such as change your opinions or plans, especially when someone is trying very hard to make you do so.
to lay something bare — If you lay something bare, you uncover it completely so that it can then be seen.
to play second fiddle — If you play second fiddle to someone, your position is less important than theirs in something that you are doing together.
to rear its ugly head — If something unpleasant rears its head or rears its ugly head, it becomes visible or noticeable.
to risk life and limb — If someone risks life and limb, they do something very dangerous that may cause them to die or be seriously injured.
to rub shoulders with — If you rub shoulders with famous people, you meet them and talk to them. You can also say that you rub elbows with someone, especially in American English.
to sow your wild oats — If a young person sows their wild oats, they behave in a rather uncontrolled way, especially by having a lot of sexual relationships.
toussaint l'ouverture — François Dominique [frahn-swa dawmee-neek] /frɑ̃ˈswa dɔmiˈnik/ (Show IPA), 1743–1803, Haitian patriot and leader of the Haitian Revolution slave rebellion.
transformational rule — Linguistics. a rule of transformational grammar that relates two phrase markers in the course of a derivation from the deep to the surface syntactic representation of a sentence, as by reordering, inserting, or deleting elements; a rule that converts deep structures into surface structures.
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

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