19-letter words containing r, e, q, u
- alexander technique — a technique for developing awareness of one's posture and movement in order to improve it
- ancillary equipment — Ancillary equipment is machines and other technical things which are used with the main items of equipment to create a complete system.
- blue-breasted quail — a small, brightly colored quail, Coturnix chinensis, of southern Asia and Australia, widely kept as a cage bird.
- campernelle jonquil — a narcissus, Narcissus odorus, of the amaryllis family, having clusters of two to four fragrant yellow flowers.
- complete quadrangle — a plane figure consisting of four points connected by six lines
- convergent sequence — fundamental sequence.
- convergent-sequence — an infinite sequence, x 1 , x 2 , …, whose terms are points in Ek, in which there exists a point y such that the limit as n goes to infinity of xn = y if and only if for every ε>0, there exists a number N such that i > N and j > N implies | xi − xj |< ε. Also called Cauchy sequence, convergent sequence. Compare complete (def 10b).
- course requirements — the qualifications that are required for acceptance onto a degree course
- creeping cinquefoil — any of several plants belonging to the genus Potentilla, of the rose family, having yellow, red, or white five-petaled flowers, as P. reptans (creeping cinquefoil) of the Old World, or P. argentea (silvery cinquefoil) of North America.
- de broglie equation — the postulate of wave mechanics that a particle of mass m moving at a velocity v will have the properties of a wave of wavelength h / mv (de Broglie wavelength) where h is Planck's constant.
- difference equation — (mathematics) A relation between consecutive elements of a sequence. The first difference is D u(n) = u(n+1) - u(n) where u(n) is the nth element of sequence u. The second difference is u(n+2) + a u(n+1) + b u(n) = 0 can be converted to a difference equation (in this case, a second order linear difference equation): D2 u(n) + p D u(n) + q u(n) = 0 and vice versa. a, b, p, q are constants.
- directory enquiries — Directory enquiries is a service which you can telephone to find out someone's telephone number.
- earthquake coverage — Earthquake coverage is insurance coverage for damage caused by earthquakes.
- earthquake engineer — a civil engineer who studies the effects of seismic activity on structures and consults on earthquake-resistant design and construction.
- entry qualification — the qualifications and conditions required to join an organization, club, etc
- equal opportunities — Equal opportunities refers to the policy of giving everyone the same opportunities for employment, pay and promotion, without discriminating against particular groups.
- equatorial mounting — an astronomical telescope mounting that allows motion of the telescope about two mutually perpendicular axes, one of which is parallel to the earth's axis
- equatorial zenithal — a type of map projection in which part of the earth's surface is projected onto a plane tangential to it at the equator
- free alongside quay — (of a shipment of goods) delivered to the quay without charge to the buyer
- geomagnetic equator — an imaginary line on the earth's surface, the plane of which passes through the center and is midway between the geomagnetic poles.
- hemidemisemiquavers — Plural form of hemidemisemiquaver.
- interquartile range — the range of values of a frequency distribution between the first and third quartiles.
- jacques montgolfier — Jacques Étienne [zhahk ey-tyen] /ʒɑk eɪˈtyɛn/ (Show IPA), 1745–99, and his brother Joseph Michel [zhaw-zef mee-shel] /ʒɔˈzɛf miˈʃɛl/ (Show IPA) 1740–1810, French aeronauts: inventors of the first practical balloon 1783.
- liquorice all-sorts — a brand of assorted sweets containing liquorice as well as coloured candy made of sugar, gelatine, and coconut
- near letter quality — a quality of print that is not quite letter quality, but is better than draft quality
- parametric equation — one of two or more equations expressing the location of a point on a curve or surface by determining each coordinate separately.
- passenger enquiries — enquiries from passengers to a transport company such as a railway or airline
- phenanthrenequinone — a yellowish-orange, crystalline, water-insoluble solid, C 1 4 H 8 O 2 , used chiefly in organic synthesis and the manufacture of dyes.
- police headquarters — building where police are stationed
- quantum electronics — the application of quantum mechanics and quantum optics to the study and design of electronic devices
- quartermaster corps — the branch of the U.S. Army responsible for supplying food, clothing, fuel, and equipment and for the operation of commissaries, laundries, etc.
- queen street farmer — a businessman who runs a farm, often for a tax loss
- queen's regulations — (in Britain and certain other Commonwealth countries when the sovereign is female) the code of conduct for members of the armed forces
- quick-change artist — a person adept at changing from one thing to another, as an entertainer who changes costumes quickly during a performance.
- recording equipment — devices used for sound reproduction
- republique malgache — French name of Malagasy Republic.
- resplendent quetzal — See under quetzal (def 1).
- rhetorical question — a question asked solely to produce an effect or to make an assertion and not to elicit a reply, as “What is so rare as a day in June?”.
- room-temperature iq — (abuse) (IBM) 80 or below. Used in describing the expected intelligence range of the luser. "Well, but how's this interface going to play with the room-temperature IQ crowd?" This is a much more insulting phrase in countries that use Celsius thermometers. See drool-proof paper.
- sea of tranquillity — Astronomy. Mare Tranquillitatis.
- secondary qualities — one of the qualities attributed by the mind to an object perceived, such as color, temperature, or taste.
- spin quantum number — the quantum number that designates the total angular momentum associated with electron spin and has a value of ½ in units of h /2π.
- squirrel-tail grass — any of various grasses having long fruiting stalks.
- superhigh frequency — any frequency between 3000 and 30,000 megahertz. Abbreviation: SHF.
- system requirements — specifications needed to run a program
- theory of equations — the branch of mathematics dealing with methods of finding the solutions to algebraic equations.
- thermal equilibrium — the relationship between two systems connected only by a diathermic wall.
- three-quarter armor — plate armor that leaves the legs exposed below the knees.
- to be headquartered — to be based; to have headquarters (in a place)
- triangle inequality — the theorem that the absolute value of the sum of two quantities is less than or equal to the sum of the absolute values of the quantities.
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