18-letter words containing a, v, e, i, r, o
- david lloyd george — David, 1st Earl of Dwyfor [doo-vawr] /ˈdu vɔr/ (Show IPA), 1863–1945, British statesman: prime minister 1916–22.
- digital switchover — the process of changing the method of transmitting television from analogue to digital format
- diplomatic service — diplomatic corps
- divine inspiration — insight provided by higher power
- domain name server — (spelling) Domain Name System.
- dragline excavator — a power shovel that operates by being dragged by cables at the end of an arm or jib: used for quarrying, opencast mining, etc
- driver's education — high-school driving classes
- elizabeth petrovna — 1709-62; empress of Russia (1741-62): daughter of Peter I
- environment agency — an official agency providing information on environmental issues, esp rivers, flooding and pollution
- evapotranspiration — The process by which water is transferred from the land to the atmosphere by evaporation from the soil and other surfaces and by transpiration from plants.
- 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.
- fischer von erlach — Johann Bernhard [yaw-hahn bern-hahrt] /ˈyɔ hɑn ˈbɛrn hɑrt/ (Show IPA), 1656–1723, Austrian architect.
- forgive and forget — be reconciled
- formal equivalence — the relation that holds between two open sentences when their universal closures are materially equivalent
- give a person five — to greet or congratulate someone by slapping raised hands
- give someone a row — to scold someone; tell someone off
- gravitational lens — a heavy, dense body, as a galaxy, that lies along our line of sight to a more distant object, as a quasar, and whose gravitational field refracts the light of that object, splitting it into multiple images as seen from the earth.
- gravitational wave — (in general relativity) a propagating wave of gravitational energy produced by accelerating masses, especially during catastrophic events, as the gravitational collapse of massive stars.
- haemorrhagic fever — any of a group of fevers, such as Ebola virus disease and yellow fever, characterized by internal bleeding or bleeding into the skin
- half-open interval — a set of numbers between two given numbers but including only one endpoint.
- have words with sb — If one person has words with another, or if two or more people have words, they have a serious discussion or argument, especially because one has complained about the other's behaviour.
- heimlich manoeuvre — a technique in first aid to dislodge a foreign body in a person's windpipe by applying sudden upward pressure on the upper abdomen
- herring bone weave — a pattern consisting of adjoining vertical rows of slanting lines, any two contiguous lines forming either a V or an inverted V , used in masonry, textiles, embroidery, etc.
- hold a reservation — If a hotel holds a reservation, it keeps a room for someone, and does not give it to someone else.
- in inverted commas — If you say in inverted commas after a word or phrase, you are indicating that it is inaccurate or unacceptable in some way, or that you are quoting someone else.
- indecent behaviour — the offence of committing indecent acts
- inductive relation — A relation R between domains D and E is inductive if for all chains d1 .. dn in D and e1 .. en in E,
- inferior vena cava — See under vena cava.
- involuntary muscle — muscle: contracts involuntarily
- iverson's language — APL, which went unnamed for many years.
- junior heavyweight — a boxer weighing up to 190 pounds (85.5 kg), between light heavyweight and heavyweight.
- king james version — Authorized Version.
- labrador retriever — one of a breed of retrievers having a short, thick, oily, solid black or yellow coat, raised originally in Newfoundland.
- macroinvertebrates — Plural form of macroinvertebrate.
- magnetic variation — variation (def 8).
- margaret of valois — ("Queen Margot") 1533–1615, 1st wife of Henry IV of France: queen of Navarre; patron of science and literature (daughter of Henry II of France and Catherine de' Medici).
- maritime provinces — region in Canada
- mental reservation — an unexpressed doubt or qualification about a situation, person, etc.
- merchant of venice — a comedy (1596?) by Shakespeare.
- microenvironmental — Pertaining to a microenvironment.
- microinvertebrates — Plural form of microinvertebrate.
- microwave detector — a device for recording the speed of a motorist
- microwave spectrum — a spectrum of electromagnetic radiations whose wavelengths fall in the microwave range.
- montgomery village — a city in central Maryland.
- mordovian republic — a constituent republic of W central Russia, in the middle Volga basin. Capital: Saransk. Pop: 888 700 (2002). Area: 26 200 sq km (10 110 sq miles)
- moving bed reactor — A moving bed reactor is a reactor in which a layer of catalyst in the form of granules is moved between a reaction area and a regeneration area.
- myeloproliferative — (medicine) of or pertaining to the presence of an abnormal proliferation of myelopoietic cells (from bone marrow).
- natural convection — Natural convection is the loss of heat from a hot solid or liquid into air which is not artificially agitated.
- neovascularization — the development of new blood vessels, especially in tissues where circulation has been impaired by trauma or disease.
- nervous exhaustion — extreme mental and physical fatigue caused by excessive emotional stress; neurasthenia.