18-letter words containing a, i, l, 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
- actual bodily harm — Actual bodily harm is a criminal offence in which someone gives another person a minor injury.
- 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.
- 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.
- african tulip tree — a tropical African evergreen tree, Spathodea campaulata, with pinnate leaves, split pods, winged seeds, and large red flowers.
- agricultural agent — county agent.
- agro-industrialize — to industrialize the agriculture of: to agro-industrialize a developing nation.
- aids-related virus — a variant of the AIDS virus. Abbreviation: ARV.
- 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.
- albert bruce sabin — Albert Bruce, 1906–93, U.S. physician, born in Poland: developed Sabin vaccine.
- 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
- alumina trihydrate — a crystalline, water-insoluble powder, Al(OH) 3 or Al 2 O 3 ⋅3H 2 O, obtained chiefly from bauxite: used in the manufacture of glass, ceramics, and printing inks, in dyeing, and in medicine as an antacid and in the treatment of ulcers.
- aluminum hydroxide — a white powder, Al(OH)3, obtained from bauxite and used to make glass, paper, etc. and in antacids
- 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.
- anti-revolutionary — of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change: a revolutionary junta.
- apartment building — An apartment building or apartment house is a tall building which contains different apartments on different floors.
- apprentice plumber — a trainee plumber
- arbitration clause — a clause in a contract laying down that disputes between the parties should be settled by arbitration
- arsenic trisulfide — a yellow or red crystalline substance, As 2 S 3 , occurring in nature as the mineral orpiment, and used as a pigment (king's yellow) and in pyrotechnics.
- aspherical surface — a lens or mirror surface that does not form part of a sphere and is used to reduce aberrations
- 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.
- athletic supporter — jockstrap
- augmented interval — an interval that is a half step greater than the corresponding major or perfect interval
- 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.
- australian terrier — a small wire-haired breed of terrier similar to the cairn
- australopithecines — Plural form of australopithecine.
- authorized capital — the total amount of value of the shares that a company is allowed to distribute
- autobiographically — In a autobiographical manner.
- auxiliary equation — characteristic equation (def 1b).
- auxiliary language — a language, as Esperanto, Swahili, or English, used for intercommunication by speakers of various other languages.
- 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.
- axis of revolution — an axis in a plane, about which an area is revolved to form a solid of revolution.
- barium thiosulfate — a white, crystalline, water-insoluble, poisonous solid, BaS 2 O 3 ⋅H 2 O, used chiefly in the manufacture of explosives, matches, paints, and varnishes.
- bernoulli equation — Hydrodynamics. Bernoulli's theorem (def 2).
- blissful ignorance — unawareness or inexperience of something unpleasant
- break your silence — If someone breaks their silence about something, they talk about something that they have not talked about before or for a long time.
- bring-and-buy sale — A bring-and-buy sale is an informal sale to raise money for a charity or other organization. People who come to the sale bring things to be sold and buy things that other people have brought.
- building materials — materials such as bricks, cement, timber, etc
- burkitt's lymphoma — a cancer characterized by tumors containing lymphoid cells, occurring esp. in children, in the jaw, eyes, and internal organs: it is associated with the Epstein-Barr virus
- butler's sideboard — a sideboard, often with a fall front, having on its top a china cabinet with glazed doors.
- calcium propionate — a white, water-soluble powder, CaC 6 H 10 O 4 , used in bakery products to inhibit the growth of fungi.
- california current — a cold current originating in the northern part of the Pacific Ocean, flowing SE along the coast of W North America.
- california fuchsia — a North American onagraceous plant, Zauschneria californica, with tubular scarlet flowers
- california-fuchsia — a plant belonging to the genus Fuchsia, of the evening primrose family, including many varieties cultivated for their handsome drooping flowers.
- camel's-hair brush — an artist's small brush, made of hair from a squirrel's tail
- cartilaginous fish — any fish of the class Chondrichthyes, including the sharks, skates, and rays, having a skeleton composed entirely of cartilage
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