20-letter words containing t, a, i, u

south orkney islands — an uninhabited group of islands in the S Atlantic, southeast of Cape Horn: formerly a dependency of the Falkland Islands; part of the British Antarctic Territory since 1962 (claims are suspended under the Antarctic Treaty). Area: 621 sq km (240 sq miles)
southern oscillation — a low-latitude fluctuation of atmospheric pressure closely linked with El Niño events, specifically the periods of El Niño warming and La Niña cooling.
space-time continuum — Also called space-time continuum. the four-dimensional continuum, having three spatial coordinates and one temporal coordinate, in which all physical quantities may be located.
special patrol group — a former police unit tasked with counter terrorism in the Royal Ulster Constabulary
specific conductance — conductivity (def 2).
specific-conductance — conductivity (def 2).
spontaneous abortion — miscarriage (def 1).
spontaneous-abortion — Also called voluntary abortion. the removal of an embryo or fetus from the uterus in order to end a pregnancy.
square cross-section — If a kelly has a square cross-section, it has a surface area with four equal sides, when looked at as if has been sliced through.
square of opposition — a diagrammatic representation of the opposition of categorical propositions.
squatter sovereignty — (used contemptuously by its opponents) popular sovereignty (def 2).
staff of aesculapius — a representation of a forked staff with an entwining serpent, used as a symbol of the medical profession and as the insignia of the American Medical Association and other medical organizations. Compare caduceus (def 2).
straight-cut tobacco — tobacco that is cut in such a way that it will lie flat.
structural isomerism — Chemistry. the relation of two or more compounds, radicals, or ions that are composed of the same kinds and numbers of atoms but differ from each other in structural arrangement (structural isomerism) as CH 3 OCH 3 and CH 3 CH 2 OH, or in the arrangement of their atoms in space and therefore in one or more properties. Compare optical isomerism, stereoisomerism.
subjective idea-list — a doctrine that the world has no existence independent of sensations or ideas.
subscription library — a commercial lending library
suitland-silver hill — a city in central Maryland, near Washington, D.C.
summary jurisdiction — the right a court has to adjudicate immediately upon some matter arising during its proceedings
summative assessment — general assessment of a pupil's achievements over a range of subjects by means of a combined appraisal of formative assessments
sunday-go-to-meeting — most presentable; best: Sunday-go-to-meeting clothes.
supersonic transport — a commercial jet airplane that can fly faster than the speed of sound. Abbreviation: SST.
surface-active agent — any substance that when dissolved in water or an aqueous solution reduces its surface tension or the interfacial tension between it and another liquid.
surveillance society — a society where surveillance technology is widely used to monitor people's everyday activities
synchronous rotation — rotation of a satellite in which the period of rotation is equal to the period of orbit around its primary, leaving the same face always pointing toward the primary: The moon is in synchronous rotation about the earth.
systemic circulation — the circulatory system in general.
take up a collection — to get into one's hold or possession by voluntary action: to take a cigarette out of a box; to take a pen and begin to write.
tax-deferred annuity — an annuity that enables one to purchase an insurance product that will earn interest, with the tax obligation deferred until withdrawals begin, usually at retirement. Abbreviation: TDA.
tchebycheff equation — a differential equation of the form (1 − x 2) d 2 y/dx 2 − x dy/dx + n 2 y = 0, where n is any nonnegative integer.
temperature gradient — rate of change of temperature with distance.
terrestrial guidance — a method of missile or rocket guidance in which the flight path is controlled by reference to the strength and direction of the earth's gravitational or magnetic field
the beautiful people — rich, fashionable people in international high society
the founding fathers — any of the men who were members of the U.S. Constituional Convention of 1787
the garment industry — the manufacturing of items of clothing
the internet account — An Internet provider in Sydney, Australia who provides SLIP, PPP and CLI accounts for the same rates. <[email protected]> handles Acorn software. E-mail: <[email protected]>. Telephone: +61 (2) 968 4333. Fax: +61 (2) 968 4334. Address: PO BOX 473, Crows Nest, NSE 2065, Australia.
the naughty nineties — (in Britain) the 1890s, considered to be a period of fun-loving and laxity, esp in sexual morals
the thousand guineas — an annual horse race, restricted to fillies, run at Newmarket since 1814
theater-in-the-round — arena theater.
theatre-in-the-round — a theatre with seats arranged around a central acting area
therapeutic abortion — abortion performed when a woman's pregnancy endangers her health.
thermal conductivity — the amount of heat per unit time per unit area that can be conducted through a plate of unit thickness of a given material, the faces of the plate differing by one unit of temperature.
thioantimonious acid — any of a group of hypothetical acids, H3SbS3, HSbS2, and H4Sb2S5, known only in the forms of their salts in solution
to bring up the rear — If a person or vehicle is bringing up the rear, they are the last person or vehicle in a moving line of them.
to burst into flames — If something bursts into flames or bursts into flame, it suddenly starts burning strongly.
to disturb the peace — If someone is accused of disturbing the peace, they are accused of behaving in a noisy and offensive way in public.
to get your bearings — to find out where one is or to find out what one should do next
to keep your hand in — If you do something to keep your hand in, you practise a skill or hobby occasionally in order to remain fairly good at it.
to make up your mind — If you make up your mind or make your mind up, you decide which of a number of possible things you will have or do.
to put it to sb that — If you put it to someone that something is true, you suggest that it is true, especially when you think that they will be unwilling to admit this.
to spread your wings — If you spread your wings, you do something new and rather difficult or move to a new place, because you feel more confident in your abilities than you used to and you want to gain wider experience.
to use shock tactics — to attempt to influence people by shocking them

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