18-letter words containing n, o, u, r
- account receivable — a current asset account showing amounts payable to a firm by customers who have made purchases of goods and services on credit
- acoustic inertance — inertance.
- acoustic reactance — acoustic impedance caused by the inertia and elasticity of the transmitting medium.
- address resolution — (networking) Conversion of an Internet address into the corresponding physical address (Ethernet address). This is usually done using Address Resolution Protocol. The resolver is a library routine and a set of processes which converts hostnames into Internet addresses, though this process in not usually referred to as resolution. See DNS.
- adenocarcinomatous — Of or pertaining to adenocarcinomas.
- adjournment debate — (in the UK) a short debate, held immediately before the end of each day's business in the House of Commons, in which backbench MPs raise matters relating to their constituencies
- aeronautical chart — a topographic map of an area of the earth's surface, designed as an aid to aircraft navigation
- african lion hound — one of a South African breed of medium-sized muscular hunting dogs having a short, glossy, red or tan coat, with a characteristic ridge of hair along the spine consisting of parallel crowns of hair growing in the opposite direction of the rest of the coat, originally developed for hunting lions but now used primarily as a guard dog.
- agro-industrialize — to industrialize the agriculture of: to agro-industrialize a developing nation.
- ailanthus silkworm — a green silkworm, Samia walkeri, introduced into the U.S. from China, that feeds on the leaves of the ailanthus.
- air national guard — a national guard organization similar to and coordinate with the U.S. Air Force.
- algebraic equation — an equation in the form of a polynomial having a finite number of terms and equated to zero, as 2 x 3 + 4 x 2 − x + 7 = 0.
- algebraic function — any function which can be constructed in a finite number of steps from the elementary operations and the inverses of any function already constructed
- almoner's cupboard — a cupboard with pierced doors, formerly used as a storage place for food.
- aluminum hydroxide — a white powder, Al(OH)3, obtained from bauxite and used to make glass, paper, etc. and in antacids
- ammonium carbamate — a white soluble crystalline compound produced by reaction between dry ammonia and carbon dioxide and used as a nitrogen fertilizer. Formula: (NH4)CO2NH2
- ammonium carbonate — an unstable pungent soluble white powder that is a double salt of ammonium bicarbonate and ammonium carbamate: used in the manufacture of baking powder, smelling salts, and ammonium compounds. Formula: (NH4)HCO3.(NH4)CO2NH2
- ammonium hydroxide — a compound existing only in aqueous solution, formed when ammonia dissolves in water to form ammonium ions and hydroxide ions. Formula: NH4OH
- ammonium purpurate — murexide.
- analogue recording — a sound recording process in which an audio input is converted into an analogous electrical waveform
- angular dispersion — a measure of the angular separation of light rays of different wavelength or color traversing a prism or diffraction grating, equal to the rate of change of the angle of deviation with respect to the change in wavelength.
- anterior pituitary — a small, somewhat cherry-shaped double structure attached by a stalk to the base of the brain and constituting the master endocrine gland affecting all hormonal functions in the body, consisting of an anterior region ((anterior pituitary) or (adenohypophysis)) that develops embryonically from the roof of the mouth and that secretes growth hormone, LH, FSH, ACTH, TSH, and MSH, a posterior region ((posterior pituitary) or (neurohypophysis)) that develops from the back of the forebrain and that secretes the hormones vasopressin and oxytocin, and an intermediate part (pars intermedia) derived from the anterior region but joined to the posterior region, that secretes the hormone MSH in lower vertebrates.
- anthropomorphously — In an anthropomorphous manner; in a manner resembling that of a human.
- anti-authoritarian — favoring complete obedience or subjection to authority as opposed to individual freedom: authoritarian principles; authoritarian attitudes.
- anti-revolutionary — of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change: a revolutionary junta.
- antiscorbutic acid — vitamin C
- antivirus software — (tool) Programs to detect and remove computer viruses. The simplest kind scans executable files and boot blocks for a list of known viruses. Others are constantly active, attempting to detect the actions of general classes of viruses. antivirus software should always include a regular update service allowing it to keep up with the latest viruses as they are released.
- aorangi-mount cook — the official name for Mount Cook
- arbitration clause — a clause in a contract laying down that disputes between the parties should be settled by arbitration
- army of occupation — an army that goes into a defeated country to enforce peace terms, keep order, etc.
- arrest of judgment — a stay of proceedings after a verdict, on the grounds of error or possible error
- assumption of risk — Assumption of risk is the practice of paying for minor losses yourself, but protecting against catastrophic losses by buying insurance cover.
- asynchronous logic — (architecture) A data-driven circuit design technique where, instead of the components sharing a common clock and exchanging data on clock edges, data is passed on as soon as it is available. This removes the need to distribute a common clock signal throughout the circuit with acceptable clock skew. It also helps to reduce power dissipation in CMOS circuits because gates only switch when they are doing useful work rather than on every clock edge. There are many kinds of asynchronous logic. Data signals may use either "dual rail encoding" or "data bundling". Each dual rail encoded Boolean is implemented as two wires. This allows the value and the timing information to be communicated for each data bit. Bundled data has one wire for each data bit and another for timing. Level sensitive circuits typically represent a logic one by a high voltage and a logic zero by a low voltage whereas transition signalling uses a change in the signal level to convey information. A speed independent design is tolerant to variations in gate speeds but not to propagation delays in wires; a delay insensitive circuit is tolerant to variations in wire delays as well. The purest form of circuit is delay-insensitive and uses dual-rail encoding with transition signalling. A transition on one wire indicates the arrival of a zero, a transition on the other the arrival of a one. The levels on the wires are of no significance. Such an approach enables the design of fully delay-insensitive circuits and automatic layout as the delays introduced by the layout compiler can't affect the functionality (only the performance). Level sensitive designs can use simpler, stateless logic gates but require a "return to zero" phase in each transition.
- at your fingertips — If you say that something is at your fingertips, you approve of the fact that you can reach it easily or that it is easily available to you.
- attribution theory — the theory that tries to explain how people link actions and emotions to particular causes, both internal and external
- audio conferencing — the practice of conducting meetings by the use of audio telecommunications
- auditory phonetics — the branch of phonetics concerned with the perception of speech sounds by humans
- australian doubles — an unusual formation in doubles in which the server's partner is positioned on the same side of the court as the server.
- australopithecines — Plural form of australopithecine.
- authorized version — the revised English translation of the Bible published in England in 1611 with the authorization of King James I
- autogenic training — a technique for reducing stress through mental exercises to produce physical relaxation
- automatic tracking — a radar tracking system in which an automatic device uses the echo signal from the tracked object to keep the radar constantly beamed on target and to compute the range of the object.
- auxiliary equation — characteristic equation (def 1b).
- auxiliary-equation — Mathematics. the characteristic polynomial of a given matrix, equated to zero. Also called auxiliary equation. an equation with one variable and equated to zero, which is derived from a given linear differential equation and in which the coefficient and power of the variable in each term correspond to the coefficient and order of a derivative in the original equation.
- aviation authority — a body that is responsible for overseeing the aviation industry
- aviation insurance — Aviation insurance is insurance cover for aircraft, and for damage, injury, or loss of life or cargo while traveling on aircraft.
- axis of revolution — an axis in a plane, about which an area is revolved to form a solid of revolution.
- bachelor's-buttons — any of various plants of the daisy family with button-like flower heads
- back to square one — If you are back to square one, you have to start dealing with something from the beginning again because the way you were dealing with it has failed.
- background reading — reading of related works in order to get contextual information on a topic that you are intending to study or write about
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