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22-letter words containing tr

  • microspectrophotometer — a spectrophotometer for examining light emitted, transmitted, or reflected by minute objects.
  • microspectrophotometry — a spectrophotometer for examining light emitted, transmitted, or reflected by minute objects.
  • microwave spectroscopy — the determination of those frequencies of the microwave spectrum that are selectively absorbed by certain materials, providing information about atomic, molecular, and crystalline structure.
  • million electron volts — a unit of energy equal to the energy acquired by an electron in falling through a potential of 10 6 volts. Abbreviation: MeV .
  • mistress of ceremonies — a woman who directs the entertainment at a party, dinner, or the like.
  • nitrohydrochloric acid — aqua regia.
  • nominal semidestructor — (abuse)   Slang for "National Semiconductor", found among other places in the 4.3BSD networking sources. During the late 1970s to mid-1980s this company marketed a series of microprocessors including the National Semiconductor 16000 and National Semiconductor 32000. At one point early in the great microprocessor race, the specs on these chips made them look like serious competition for the rising Intel 80x86 and Motorola 680x0 series. Unfortunately, the actual parts were notoriously flaky and never implemented the full instruction set promised in their literature, apparently because the company couldn't get any of the mask steppings to work as designed. They eventually sank without trace, joining the Zilog Z8000 and a few even more obscure also-rans in the graveyard of forgotten microprocessors.
  • non-constructive proof — (logic)   (Or "existence proof") A proof that something exists that does not provide an example of that thing or a method for finding an example. (A constructive proof does provide such an example or method). For example, for any pair of finite real numbers n < 0 and p > 0 there exists a real number 0 < k < 1 such that f(k) = (1-k)*n + k*p = 0. A non-constructive proof might proceed by observing that as k changes continuously from 0 to 1, f(k) changes continuously from n to p and, since they lie either side of zero, f(k) must pass through zero for some intermediate value of k. This proof does not tell us what that value of k is, only that it exists.
  • non-euclidean geometry — geometry based upon one or more postulates that differ from those of Euclid, especially from the postulate that only one line may be drawn through a given point parallel to a given line.
  • non-restrictive clause — a relative clause that describes or supplements but is not essential in establishing the identity of the antecedent and is usually set off by commas in English. In This year, which has been dry, is bad for crops the clause which has been dry is a nonrestrictive clause.
  • nondestructive testing — any of several methods of detecting flaws in metals without causing damage. The most common techniques involve the use of X-rays, gamma rays, and ultrasonic vibrations
  • obstruction of justice — a criminal offence that involves attempting to obstruct the process of law
  • office of fair trading — a government department established in the UK in 1973, which acts as an economic regulator, responsible for ensuring fairness in consumer protection and competition law
  • on (or off) the track — keeping to (or straying from) the subject, objective, or goal
  • on a shoestring budget — with very little money to spend
  • one-eyed trouser snake — a vulgar term for the male member; penis
  • operating instructions — instructions on how to use something (such an electrical appliance, etc)
  • over-industrialization — the large-scale introduction of manufacturing, advanced technical enterprises, and other productive economic activity into an area, society, country, etc.
  • passive matrix display — (hardware)   A type of liquid crystal display which relies on persistence to maintain the state of each display element (pixel) between refresh scans. The resolution of such displays is limited by the ratio between the time to set a pixel and the time it takes to fade. Contrast active matrix display.
  • personal rapid transit — a short system of small, self-propelled, automated, rubber-tired vehicles that usually run on elevated concrete tracks and allow a passenger a limited selection of routes, as in an amusement park or at an airport. Abbreviation: PRT.
  • phosphorus trichloride — a clear, colorless, fuming liquid, PCl 3 , used chiefly in organic synthesis as a chlorinating agent.
  • planetary transmission — A planetary transmission is a special form of geared drive in which the input and output shafts are on the same axis.
  • privileged instruction — A machine code instruction that may only be executed when the processor is running in supervisor mode. Privileged instructions include operations such as I/O and memory management.
  • program transformation — The systematic development of efficient programs from high-level specifications by meaning-preserving program manipulations. Also known as optimisation. See fusion, loop combination, peephole optimisation, register allocation, tupling, unfold/fold.
  • programmed instruction — a progressively monitored, step-by-step teaching method, employing small units of information or learning material and frequent testing, whereby the student must complete or pass one stage before moving on to the next.
  • quarter inch cartridge — (storage)   /kwik/ (QIC) a type of magnetic tape and tape drive. Development standards for QIC make it possible for tapes written on one QIC drive to be read on another. QIC drives are made to work with different lengths of tape. The model number of the drive consists of QIC followed by a number which indicates the drives tape capacity in megabytes (MB).
  • reconstructive surgery — the restoration of appearance and function following injury or disease, or the correction of congenital defects, using the techniques of plastic surgery.
  • reporting restrictions — restrictions or rules on whether something or certain details of something can be published or broadcast by the media
  • restricted users group — a group of people who, with knowledge of a secret password, or by some other method, have access to restricted information stored in a computer
  • retroactive inhibition — the tendency for the retention of learned material or skills to be impaired by subsequent learning, esp by learning of a similar kind
  • retrograde ejaculation — ejaculation of semen backward toward the bladder instead of forward through the urethra.
  • royal national theatre — a theatre complex in London, on the S bank of the Thames (opened 1976). The prefix Royal was added in 1988. It houses the Royal National Theatre Company
  • rural district council — (in England and Wales from 1888 to 1974 and Northern Ireland from 1898 to 1973) a group of people elected to govern a rural division of a county
  • school crossing patrol — the official name for lollipop man or lady
  • selective transmission — a transmission in which the available forward and reverse gears may be engaged in any order, without passing progressively through the different changes of gear.
  • seventh-inning stretch — Baseball. a point in the game when spectators rise from their seats to relax by stretching their legs, usually after six and one-half innings.
  • speckle interferometry — a photographic technique for clarifying the telescopic images of a star by taking short exposures of the electronic images of the star's speckle pattern and extrapolating properties of the starlight to create a more accurate composite image.
  • spectrophotometrically — an instrument for making photometric comparisons between parts of spectra.
  • spectroscopic analysis — the use of spectroscopy in determining the chemical or physical constitution of substances
  • spherical trigonometry — the branch of trigonometry that deals with spherical triangles.
  • straining at the leash — eagerly impatient to begin something
  • strait of juan de fuca — a strait between Vancouver Island (Canada) and NW Washington (US). Length: about 129 km (80 miles). Width: about 24 km (15 miles)
  • stratford de redcliffe — 1st Viscount (Stratford Canning) 1786–1880, English diplomat.
  • streetcar named desire — a play (1947) by Tennessee Williams.
  • structural engineering — the branch of civil engineering dealing with the design and planning of large structures
  • structural linguistics — a usually synchronic approach to language study in which a language is analyzed as an independent network of formal systems, each of which is composed of elements that are defined in terms of their contrasts with other elements in the system.
  • structured programming — the design and coding of programs by a methodology (top-down) that successively breaks problems into smaller, nested subunits.
  • struggle for existence — the competition in nature among organisms of a population to maintain themselves in a given environment and to survive to reproduce others of their kind.
  • stuffing and stripping — (in marine transport) the packing and unpacking of containers
  • syntactic construction — a construction that has no bound forms among its immediate constituents. Compare morphologic construction.
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