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18-letter words containing v, i, a, t, o, r

  • 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.
  • forgive and forget — be reconciled
  • 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 mass — the mass of a body as measured by its gravitational attraction for other bodies.
  • gravitational pull — force of gravity
  • 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.
  • 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.
  • 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,
  • involuntary muscle — muscle: contracts involuntarily
  • italian provincial — designating or of a style of rural, Italian furniture of the 18th and 19th cent., with straight lines and simple decoration, usually of fruitwood or mahogany
  • junior heavyweight — a boxer weighing up to 190 pounds (85.5 kg), between light heavyweight and heavyweight.
  • labrador retriever — one of a breed of retrievers having a short, thick, oily, solid black or yellow coat, raised originally in Newfoundland.
  • law of gravitation — a law stating that any two masses attract each other with a force equal to a constant (constant of gravitation) multiplied by the product of the two masses and divided by the square of the distance between them.
  • 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.
  • microgravitational — Of or pertaining to microgravitation.
  • 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.
  • 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.
  • netscape navigator — (networking, tool, product)   /Mozilla/ (Often called just "Netscape") A web browser from Netscape Communications Corporation. The first beta-test version was released free to the Internet on 13 October 1994. Netscape evolved from NCSA Mosaic (with which it shares at least one author) and runs on the X Window System under various versions of Unix, on Microsoft Windows and on the Apple Macintosh. It features integrated support for sending electronic mail and reading Usenet news, as well as RSA encryption to allow secure communications for commercial applications such as exchanging credit card numbers with net retailers. It provides multiple simultaneous interruptible text and image loading; native inline JPEG image display; display and interaction with documents as they load; multiple independent windows. Netscape was designed with 14.4 kbps modem links in mind. You can download Netscape Navigator for evaluation, or for unlimited use in academic or not-for-profit environments. You can also pay for it. Version: 1.0N. E-mail: <[email protected]>.
  • nominative-address — a noun naming the person to whom one is speaking.
  • non-conversational — able or ready to converse; given to conversation.
  • non-discriminative — constituting a particular quality, trait, or difference; characteristic; notable.
  • nonvolatile memory — computer memory that can retain stored information even when not powered, for example read-only memory
  • offensive material — any published or broadcast content (such as articles, photographs, films, or websites) that is likely to be upsetting, insulting, or objectionable to some or most people
  • operation overlord — the codename for the Allied invasion (June 1944) of northern France
  • optical disc drive — optical disk drive
  • optical disk drive — (hardware)   (Or "optical disc drive", "optical storage") A generic term for any device that reads and/or writes optical media, i.e. compact discs, DVDs and/or Blu-ray discs or future media that uses light (from a small laser) to read data off a removable, rotating disk. At least one such drive is commonly installed in most personal computers to allow them to play and/or record audio and video media and load and store data such as program installers. The floppy disk has been replaced by optical media due to its vastly greater capacity, e.g. 50,000 megabytes for a dual-layer blu-ray disc compared with 1.5 megabytes for a floppy (over 30,000 times as much).
  • oral contraceptive — birth-control pill.
  • ovariohysterectomy — Surgical removal of the ovaries and uterus.
  • over and done with — If you say that something is over and done with, you mean that it is completely finished and you do not have to think about it any more.
  • over-extrapolation — to infer (an unknown) from something that is known; conjecture.
  • over-pronunciation — to pronounce (a word, syllable, etc.) in an exaggerated, affected, or excessively careful manner.
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