20-letter words containing a, n, u, r

supersonic transport — a commercial jet airplane that can fly faster than the speed of sound. Abbreviation: SST.
supplementary angles — either of two angles that added together produce an angle of 180°.
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.
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.
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 (great) unwashed — The unwashed or the great unwashed is a way of referring to poor or ordinary people.
the canterbury tales — an uncompleted sequence of tales by Chaucer, written for the most part after 1387.
the course of nature — the ordinary course of events
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 other way around — reversed
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.
thomas of erceldoune — Thomas of, Thomas of Erceldoune.
thought transference — transference of thought by extrasensory means from the mind of one individual to another; telepathy.
thread language zero — (language) (TL0) The instruction set of the TAM (Threaded Abstract Machine), used to implement Id.
three-quarter nelson — a hold in which a wrestler, from a kneeling position behind a prone opponent, applies a half nelson with one arm, passes the other arm under the opponent's body on the near side, and locks the arms at the fingers or wrist on the back of the opponent's neck.
throw up one's hands — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
to bear the brunt of — To bear the brunt or take the brunt of something unpleasant means to suffer the main part or force of it.
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 clean up your act — If someone who has been behaving badly cleans up their act, they start to behave in a more acceptable or responsible way.
to do your damnedest — If you say that you will do your damnedest to achieve something, you mean that you will try as hard as you can to do it, even though you think that it will take a lot of effort.
to fall on your feet — If you say that someone always falls or lands on their feet, you mean that they are always successful or lucky, although they do not seem to achieve this by their own efforts.
to get your bearings — to find out where one is or to find out what one should do next
to get your own back — If you get your own back on someone, you have your revenge on them because of something bad that they have done to you.
to keep your balance — If you keep your balance, for example, when standing in a moving vehicle, you remain steady and do not fall over. If you lose your balance, you become unsteady and fall over.
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 land on your feet — If you say that someone always lands on their feet, you mean that they are always successful or lucky, although they do not seem to achieve this by their own efforts.
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 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 stand your ground — If you stand your ground or hold your ground, you continue to support a particular argument or to have a particular opinion when other people are opposing you or trying to make you change your mind.
too much information — I don't want to hear any more
transposed conjugate — adjoint (def 2).
travelling-wave tube — an electronic tube in which an electron beam interacts with a distributed high-frequency magnetic field so that energy is transferred from the beam to the field
trigeminal neuralgia — tic douloureux.
troilus and cressida — a satiric comedy (1598–1602?) by Shakespeare.
tropical disturbance — a very weak, or incipient, tropical cyclone.
trustee savings bank — a British financial institution which offered savings facilities for small investors and was managed by unpaid trustees. Depositors had no voting rights and no say in financial or managerial matters. The bank is now a public limited company with the same rights and services as other banks and only retains the title in the abbreviated form TSB.
tubing head pressure — The tubing head pressure is the pressure on the tubing, which is measured at the wellhead.
turn an honest penny — to earn money fairly and honestly
turn over a new leaf — one of the expanded, usually green organs borne by the stem of a plant.
twelve-string guitar — an acoustic guitar having twelve strings instead of six, with each pair tuned an octave apart, and more difficult to play than the standard guitar.

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