21-letter words containing d, t, l, r

retarded acceleration — velocity increase constrained by opposing forces such as wind resistance or braking
right-angled triangle — a triangle one angle of which is a right angle
rio de la plata river — Rí·o de la [ree-aw th e lah] /ˈri ɔ ðɛ lɑ/ (Show IPA) an estuary on the SE coast of South America between Argentina and Uruguay, formed by the Uruguay and Paraná rivers, about 185 miles (290 km) long.
royal victorian order — (in Britain) an order of chivalry founded by Queen Victoria in 1896, membership of which is conferred for special services to the sovereign
sampling distribution — the distribution of a statistic based on all possible random samples that can be drawn from a given population.
santa barbara islands — group of nine islands, & many islets, off the SW coast of Calif.
satellite dish aerial — a parabolic aerial for reception from or transmission to an artificial satellite
scalar triple product — the volume of the parallelepiped defined by three given vectors, u, v, and w, usually represented as u·v 1 (v×w), [ uvw ], or (uvw), where × denotes a cross product and · denotes an inner product.
school of the soldier — an institution where instruction is given, especially to persons under college age: The children are at school.
school superintendent — an official whose job is to oversee school administration within a district
scorched earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
scorched-earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
semantic differential — a technique for measuring the connotative meaning of concepts by having an individual rate each concept on a series of graduated scales, each scale defined by a pair of polar adjectives, as good–bad or strong–weak.
set the world on fire — the earth or globe, considered as a planet.
sierra madre oriental — the system of mountains in the east of Mexico
silicon tetrachloride — a colorless, fuming liquid, SiCl 4 , used chiefly for making smoke screens and various derivatives of silicon.
silicon tetrafluoride — a colorless, fuming gas, SiF 4 , used chiefly in the manufacture of fluosilicic acid.
sinusoidal projection — an equal-area projection in which parallels are straight lines spaced at regular intervals, the central meridian is a straight line one-half the length of the equator, and the other meridians are curves symmetrical to the central meridian.
slatwall merchandiser — A slatwall merchandiser is a three-dimensional display unit with grooves cut into its surface into which metal hanging rails can be fixed at various heights.
sleep-terror disorder — night terror.
social administration — the administration and maintenance of issues to do with social policies and welfare
sovereign wealth fund — an investment fund created using the financial assets of a national government
special correspondent — a journalist who covers stories firsthand from a war zone
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.
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
stem-and-leaf diagram — a histogram in which the data points falling within each class interval are listed in order
stock list department — (in an American stock exchange) the department dealing with monitoring compliance with its listing requirements and rules
stockholder of record — a stockholder or his or her agent whose name is registered on the books of the issuing corporation at the close of a business day set for determining that stockholders shall receive dividends or vote on an issue.
sunday school teacher — someone who teaches at a Sunday school
terrestrial radiation — long-wave electromagnetic radiation in the form of heat emitted from the earth's surface and atmosphere.
territoire de belfort — a department of E France, now in Franche-Comté region: the only part of Alsace remaining to France after 1871. Capital: Belfort. Pop: 139 383 (2003 est). Area: 608 sq km (237 sq miles)
the fall of the cards — the chance distribution of cards in a given deal
the household cavalry — a group of British soldiers on horseback who have the job of protecting the king or queen and their family
the middle of nowhere — remote place
the moral high ground — If you say that someone has taken the moral high ground, you mean that they consider that their policies and actions are morally superior to the policies and actions of their rivals.
the oldest profession — prostitution
the san andreas fault — a geological fault in California
the women's land army — a unit of women recruited to do agricultural work in the United Kingdom during World War I and World War II
the yellow brick road — the road to success or happiness (in the film the Wizard of Oz the yellow brick road leads to Oz)
thermal decomposition — Thermal decomposition is the process in which a chemical species breaks down when its temperature is increased.
third party liability — Third party liability is insurance against money which an insured may have to pay to third parties if they accidentally cause them injury, loss, or damage.
threshold wage policy — a policy whereby wages are increased in accordance with inflation
to be hard luck on sb — to be unfortunate or unlucky for someone
to be killed outright — If someone is killed outright, they die immediately, for example in an accident.
to kill a mockingbird — a novel (1960) by Harper Lee.
to lay down your life — If someone lays down their life for another person, they die so that the other person can live.
to let your hair down — If you let your hair down, you relax completely and enjoy yourself.
to play the race card — if someone plays the race card they bring up the issue of race in a discussion, perhaps for sympathy or to seek popularity by appealing to racist sentiment
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.

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