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15-letter words containing a, c, t, o

  • apostrophically — (rhetoric) Using apostrophe; with sudden exclamatory dialogue.
  • appellate court — In the United States, an appellate court is a special court where people who have been convicted of a crime can appeal against their conviction.
  • apple macintosh — Macintosh
  • applesoft basic — (language)   A version of BASIC for Apple computers.
  • apprentice work — work done when young and a novice
  • approach lights — lights on the runway that guide planes coming in to land
  • approachability — capable of being approached; accessible.
  • arc de triomphe — the triumphal arch in Paris begun by Napoleon I to commemorate his victories of 1805–6 and completed in 1836
  • arch of triumph — Arc de Triomphe.
  • archaeastronomy — (astronomy, archaeology) The historical, especially archeological, study of astronomy; the study of the astronomical systems and methods of ancient cultures often embracing the astrology and cosmology of the past.
  • archaeobotanist — A person engaged in archaeobotany.
  • archeoastronomy — the branch of archaeology that deals with the apparent use by prehistoric civilizations of astronomical techniques to establish the seasons or the cycle of the year, especially as evidenced in the construction of megaliths and other ritual structures.
  • archiepiscopate — the rank, office, or term of office of an archbishop
  • architectonical — Alternative form of architectonic.
  • arms inspection — the official checking of a country's weapons and other military equipment, usually to check that international agreements have been respected
  • articles of war — the disciplinary and legal procedures by which the naval and military forces of Great Britain were bound before the 19th century
  • as best one can — If someone does something as best they can, they do it as well as they can, although it is very difficult.
  • asbestos cement — a compound of asbestos fiber and Portland cement formerly used for various nonstructural building purposes.
  • asiatic cholera — cholera (def 1).
  • association law — any law governing the association of ideas
  • astrodynamicist — a person who studies astrodynamics
  • astronautically — In an astronautic way.
  • astrophysically — from an astrophysical point of view
  • astrophysicists — Plural form of astrophysicist.
  • as…as they come — the most characteristic example of a class or type
  • at short notice — Notice is used in expressions such as 'at short notice', 'at a moment's notice' or 'at twenty-four hours' notice', to indicate that something can or must be done within a short period of time.
  • at the controls — If someone is at the controls of a machine or other piece of equipment, they are operating it.
  • at the mercy of — in the power of
  • at the touch of — You use at the touch of in expressions such as at the touch of a button and at the touch of a key to indicate that something is possible by simply touching a switch or one of the keys of a keyboard.
  • at your service — You can use 'at your service' after your name as a formal way of introducing yourself to someone and saying that you are willing to help them in any way you can.
  • atherosclerosis — a degenerative disease of the arteries characterized by patchy thickening of the inner lining of the arterial walls, caused by deposits of fatty material; a form of arteriosclerosis
  • atherosclerotic — Of, pertaining to, or afflicted with atherosclerosis.
  • athletic sports — sports, esp track and field events, in which athleticism is required
  • atlantic salmon — a valuable food and game fish, Salmo salar, mainly of northern coastal Atlantic waters or, when spawning, in freshwater streams tributary to the ocean.
  • atmospherically — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
  • atomic cocktail — an aqueous solution of radioactive substance administered orally as part of the treatment for cancer
  • audubon society — a North American organization devoted to the conservancy of birds
  • authentications — Plural form of authentication.
  • autocannibalism — The eating of part of one's own body.
  • autocollimation — the process used in an autocollimator.
  • autocorrelation — the condition occurring when successive items in a series are correlated so that their covariance is not zero and they are not independent
  • autocorrelative — Relating to autocorrelation.
  • autodestructive — likely to cause one's own destruction
  • autodidacticism — any self-directed learning or self-education
  • autofluorescent — Of, pertaining to, or exhibiting autofluorescence.
  • autoinoculation — the inoculation of microorganisms (esp viruses) from one part of the body into another, usually in the form of a vaccine
  • automatic drive — an automotive transmission requiring either very little or no manual shifting of gears.
  • automatic focus — a system in a camera which automatically adjusts the lens so that the object being photographed is in focus, often one using infrared light to estimate the distance of the object from the camera
  • automatic pilot — An automatic pilot or an autopilot is a device in an aircraft that automatically keeps it on a particular course.
  • automatic rifle — a type of light machine gun capable of firing automatically or in single shots.
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