18-letter words containing a, r, u
- driver's education — high-school driving classes
- drug on the market — Pharmacology. a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being.
- due process of law — the administration of justice in accordance with established rules and principles
- dwarf storage unit — (humour) (DSU) An IBM term for a cupboard.
- earned run average — a measure of the effectiveness of a pitcher, obtained by dividing the number of earned runs scored against the pitcher by the number of innings pitched and multiplying the result by nine. A pitcher yielding three earned runs in nine innings has an earned run average of 3.00. Abbreviation: ERA, era.
- eastern algonquian — a subgroup of the Algonquian language family, comprising the languages spoken aboriginally from Nova Scotia to northeastern North Carolina.
- eat your heart out — Anatomy. a hollow, pumplike organ of blood circulation, composed mainly of rhythmically contractile smooth muscle, located in the chest between the lungs and slightly to the left and consisting of four chambers: a right atrium that receives blood returning from the body via the superior and inferior vena cavae, a right ventricle that pumps the blood through the pulmonary artery to the lungs for oxygenation, a left atrium that receives the oxygenated blood via the pulmonary veins and passes it through the mitral valve, and a left ventricle that pumps the oxygenated blood, via the aorta, throughout the body.
- eau de vie de marc — marc (def 2).
- ejaculatio praecox — premature ejaculation during sexual intercourse
- electrical circuit — An electrical circuit is a complete route that an electric current can flow around.
- electrical failure — an instance when an electricity supply stops working
- electroacupuncture — the insertion into the body of one or more needles through which an electric current is passed
- electrostatic unit — any unit that belongs to a system of electrical cgs units in which the electric constant is given the value of unity and is taken as a pure number
- electrotherapeutic — Relating to electrotherapeutics.
- elementary student — primary school pupil
- engelbart, douglas — Douglas Engelbart
- entrepreneurialism — The spirit or state of acting in an entrepreneurial manner.
- epstein-barr virus — a virus belonging to the herpes family that causes infectious mononucleosis; it is also implicated in the development of Burkitt's lymphoma and Hodgkin's disease
- equinoctial circle — celestial equator
- equinoctial spring — either of the two highest spring tides that occur at the equinoxes
- equivalent circuit — an arrangement of simple electrical components that is electrically equivalent to a complex circuit and is used to simplify circuit analysis
- established church — a Church that is officially recognized as a national institution, esp the Church of England
- euclid's algorithm — (algorithm) (Or "Euclidean Algorithm") An algorithm for finding the greatest common divisor (GCD) of two numbers. It relies on the identity gcd(a, b) = gcd(a-b, b) To find the GCD of two numbers by this algorithm, repeatedly replace the larger by subtracting the smaller from it until the two numbers are equal. E.g. 132, 168 -> 132, 36 -> 96, 36 -> 60, 36 -> 24, 36 -> 24, 12 -> 12, 12 so the GCD of 132 and 168 is 12. This algorithm requires only subtraction and comparison operations but can take a number of steps proportional to the difference between the initial numbers (e.g. gcd(1, 1001) will take 1000 steps).
- european community — an economic and political association of European States that came into being in 1967, when the legislative and executive bodies of the European Economic Community merged with those of the European Coal and Steel Community and the European Atomic Energy Community: subsumed into the European Union in 1993
- evolution strategy — (ES) A kind of evolutionary algorithm where individuals (potential solutions) are encoded by a set of real-valued "object variables" (the individual's "genome"). For each object variable an individual also has a "strategy variable" which determines the degree of mutation to be applied to the corresponding object variable. The strategy variables also mutate, allowing the rate of mutation of the object variables to vary. An ES is characterised by the population size, the number of offspring produced in each generation and whether the new population is selected from parents and offspring or only from the offspring. ES were invented in 1963 by Ingo Rechenberg, Hans-Paul Schwefel at the Technical University of Berlin (TUB) while searching for the optimal shapes of bodies in a flow.
- executive chairman — the most senior internal position within a company, combining the duties of chairman and chief executive
- extemporaneousness — The degree or property of being extemporaneous.
- fall to the ground — (of a plan, theory, etc) to be rendered invalid, esp because of lack of necessary information
- fascicular cambium — cambium that develops within the vascular bundles, producing secondary xylem and phloem.
- fast-food industry — the industry surrounding fast-food restaurants
- federal funds rate — The federal funds rate is the overnight rate between banks.
- feeping creaturism — /fee'ping kree"ch*r-izm/ A deliberate spoonerism for creeping featurism, meant to imply that the system or program in question has become a misshapen creature of hacks. This term isn"t really well defined, but it sounds so neat that most hackers have said or heard it. It is probably reinforced by an image of terminals prowling about in the dark making their customary noises.
- fettuccine alfredo — fettuccine in cream sauce with grated Parmesan cheese.
- fibrocartilaginous — a type of cartilage having a large number of fibers.
- first class module — (programming) A module that is a first class data object of the programming language, e.g. a record containing functions. In a functional language, it is standard to have first class programs, so program building blocks can have the same status.
- fissure of rolando — central sulcus.
- fixed-focus camera — a camera with an unadjustable focal length and with a relatively large depth of field.
- floating underflow — underflow
- fluegelman, andrew — Andrew Fluegelman
- football supporter — a person who supports a particular football team
- formal equivalence — the relation that holds between two open sentences when their universal closures are materially equivalent
- foundation garment — an undergarment, as a girdle or corset, worn by women to support or give shape to the contours of the body.
- fourth commandment — “Remember the sabbath day, to keep it holy”: fourth of the Ten Commandments.
- fourth normal form — database normalisation
- fracture toughness — The fracture toughness of a material is how likely it is to resist fracture.
- frederick douglass — Frederick, 1817–95, U.S. ex-slave, abolitionist, and orator.
- free-range poultry — poultry kept in natural nonintensive conditions
- from hand to mouth — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
- fulminating powder — powder that explodes by percussion.
- fuming nitric acid — a colorless, yellowish, or brownish fuming corrosive liquid, usually prepared from nitric acid by the addition of excess nitrogen dioxide: used in organic synthesis for nitration, and as an oxidizer in liquid propellants for rockets.