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20-letter words containing l, d, s

  • can do sth blindfold — If you say that you can do something blindfold, you are emphasizing that you can do it easily, for example because you have done it many times before.
  • card up one's sleeve — a plan or resource kept secret or held in reserve
  • carl friedrich gauss — (person)   A German mathematician (1777 - 1855), one of all time greatest. Gauss discovered the method of least squares and Gaussian elimination. Gauss was something of a child prodigy; the most commonly told story relates that when he was 10 his teacher, wanting a rest, told his class to add up all the numbers from 1 to 100. Gauss did it in seconds, having noticed that 1+...+100 = 100+...+1 = (101+...+101)/2. He did important work in almost every area of mathematics. Such eclecticism is probably impossible today, since further progress in most areas of mathematics requires much hard background study. Some idea of the range of his work can be obtained by noting the many mathematical terms with "Gauss" in their names. E.g. Gaussian elimination (linear algebra); Gaussian primes (number theory); Gaussian distribution (statistics); Gauss [unit] (electromagnetism); Gaussian curvature (differential geometry); Gaussian quadrature (numerical analysis); Gauss-Bonnet formula (differential geometry); Gauss's identity (hypergeometric functions); Gauss sums (number theory). His favourite area of mathematics was number theory. He conjectured the Prime Number Theorem, pioneered the theory of quadratic forms, proved the quadratic reciprocity theorem, and much more. He was "the first mathematician to use complex numbers in a really confident and scientific way" (Hardy & Wright, chapter 12). He nearly went into architecture rather than mathematics; what decided him on mathematics was his proof, at age 18, of the startling theorem that a regular N-sided polygon can be constructed with ruler and compasses if and only if N is a power of 2 times a product of distinct Fermat primes.
  • cat's-tail speedwell — a widely cultivated Eurasian plant, Veronica spicata, of the figwort family, having blue flowers in long, spikelike clusters.
  • central bedfordshire — a unitary authority of S central England. Pop: 252 100 (2007 est). Area: 712 sq km (275 sq miles)
  • child support agency — the British government agency concerned with the welfare of children
  • child-abuse register — (in Britain) a list of children deemed to be at risk of abuse or injury from their parents or guardians, compiled and held by a local authority, area health authority, or NSPCC Special Unit
  • childhood sweetheart — a boyfriend or girlfriend from an early stage of life
  • clay-colored sparrow — a sparrow, Spizella pallida, of the interior of North America, having buff, brown, and white plumage with a pale-gray breast.
  • cleansing department — the department of a local authority that collects refuse
  • college of cardinals — the collective body of cardinals having the function of electing and advising the pope
  • colloidal suspension — a mixture having particles of one component, with diameters between 10 −7 and 10 −9 metres, suspended in a continuous phase of another component. The mixture has properties between those of a solution and a fine suspension
  • colorado blue spruce — blue spruce.
  • common lodging house — a cheap lodging house
  • complaints procedure — a prescribed method of lodging a complaint to an institution
  • complementary strand — either of the two chains that make up a double helix of DNA, with corresponding positions on the two chains being composed of a pair of complementary bases.
  • condensation nucleus — nucleus (def 5).
  • conditioned stimulus — a stimulus to which an organism has learned to make a response by classical conditioning
  • congressional record — (in the US) the government journal that publishes all proceedings of Congress
  • controlled explosion — the deliberate detonation of an explosive device under strictly controlled circumstances
  • controlled substance — a drug regulated by the Federal Controlled Substances Acts, including opiates, depressants, stimulants, and hallucinogens
  • copulative asyndeton — a staccato effect produced by omitting copulative connectives between two or more items in a group, as in “Friends, Romans, countrymen.”.
  • corresponding angles — a pair of nonadjacent angles, one interior and one exterior, on the same side of a transversal: these paired angles are equal if the lines cut by the transversal are parallel
  • cost-of-living index — a numerical scale by means of which cost-of-living levels can be compared with a base number
  • criminal proceedings — action taken in a court to bring a criminal prosecution against someone
  • criminal syndicalism — the doctrine of recourse to acts of violence or terrorism, or the advocacy of such acts, as a means of effecting economic or political change: proscribed by statute in many U.S. states.
  • cycloidal propulsion — propulsion of a vessel by propellers of controllable pitch that steer as well as propel.
  • cylinder head gasket — (in an automobile engine) a gasket placed between the cylinder and the cylinder heads to avoid leaks of coolant and compression
  • darkfield microscope — kind of microscope
  • daylight saving time — Daylight Saving Time is a period of time in the summer when the clocks are set one hour forward, so that people can have extra light in the evening.
  • daylight-saving time — the civil time observed when daylight saving is adopted in a country or community.
  • deinstitutionalizing — Present participle of deinstitutionalize.
  • dementia pugilistica — chronic traumatic encephalopathy.
  • democratic socialism — socialism, or a modified form of socialism, achieved by a gradual transition by and under democratic political processes.
  • deontological ethics — the branch of ethics dealing with right action and the nature of duty, without regard to the goodness or value of motives or the desirability of the ends of any act.
  • deoxyribonucleotides — Plural form of deoxyribonucleotide.
  • devil's bit scabious — a similar and related Eurasian marsh plant, Succisa pratensis
  • dewey decimal system — a frequently used system of library book classification and arrangement with ten main subject classes
  • dickless workstation — (abuse)   Extremely pejorative hackerism for "diskless workstation".
  • diels-alder reaction — the reaction in which a conjugated diene combines with a double or triple bond of a given compound to form a ring of six carbon atoms.
  • difference threshold — the minimum difference between two stimuli that is just detectable by a person
  • differential housing — the casing that houses the differential of a motor vehicle
  • digital data service — (communications)   (DDS) The class of service offered by telecommunications companies for transmitting digital data as opposed to voice.
  • digital service unit — data service unit
  • diisobutyl phthalate — a clear, colorless liquid, C 14 H 26 O 4 , used chiefly as a plasticizer for nitrocellulose.
  • dimensional analysis — a method for comparing the dimensions of the physical quantities occurring in a problem to find relationships between the quantities without having to solve the problem completely. Compare dimension (def 6).
  • diophantine analysis — any of several methods for finding integral solutions for equations with more than one variable whose coefficients are integers.
  • diplomatic secretary — secretary (def 5).
  • diplomatic-secretary — secretary (def 5).
  • disability allowance — an amount of money paid by the government to people who are unable to work because of a disability. This is a general term or, in the UK, a shorter way of referring to what is officially called the Disability Living Allowance
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