17-letter words containing a, c, t, o
- aerothermodynamic — Of or pertaining to aerothermodynamics.
- against the clock — If you are doing something against the clock, you are doing it in a great hurry, because there is very little time.
- agathokakological — (nonce word) composed of both good and evil.
- age of discretion — the age at which a person is considered to be able to manage his or her own affairs
- agent provocateur — An agent provocateur is a person who is employed by the government or the police to encourage certain groups of people to break the law, so they can arrest them or make them lose public support.
- agricultural show — a display of agricultural equipment and livestock, often including competitions, entertainment, and a trade fair
- aircraft observer — U.S. Army. observer (def 4).
- aircraft-observer — someone or something that observes.
- algorithmic model — (programming) A method of estimating software cost using mathematical algorithms based on the parameters which are considered to be the major cost drivers. These estimate of effort or cost are based primarily on the size of the software or Delivered Source Instructions (DSI)s, and other productivity factors known as Cost Driver Attributes. See also Parametric Model.
- all over the occy — in every direction
- all-weather court — a tennis court suitable to be used in all kinds of weather
- almanach de gotha — a publication giving statistical information on European royalty.
- alphaphotographic — Of or pertaining to alphaphotographics.
- american dog tick — a common tick, Dermacentor variabilis, that is the vector of Rocky Mountain spotted fever in the eastern U.S. and also carries tularemia.
- american football — American football is a game similar to rugby that is played by two teams of eleven players using an oval-shaped ball. Players try to score points by carrying the ball to their opponents' end of the field, or by kicking it over a bar fixed between two posts.
- amino-acid dating — a method used to date an organic geological or archaeological specimen, as a fossil or mummified body, by determining how much change has occurred in the amino-acid structure of that specimen.
- amoebic dysentery — inflammation of the intestines caused by the parasitic amoeba Endamoeba histolytica
- amor vincit omnia — love conquers everything
- amphidromic point — a point of almost zero tidal fluctuation on the ocean surface, represented on a chart of cotidal lines by a point from which these lines radiate.
- anabolic steroids — a synthetic derivative of testosterone, sometimes used by athletes to help increase weight and strength.
- anachronistically — In an anachronistic manner; in the manner of an anachronism.
- analogue computer — (computer, hardware) A machine or electronic circuit designed to work on numerical data represented by some physical quantity (e.g. rotation or displacement) or electrical quantity (e.g. voltage or charge) which varies continuously, in contrast to digital signals which are either 0 or 1. For example, the turning of a wheel or changes in voltage can be used as input. Analogue computers are said to operate in real time and are used for research in design where many different shapes and speeds can be tried out quickly. A computer model of a car suspension allows the designer to see the effects of changing size, stiffness and damping.
- analytic geometry — the branch of geometry in which a coordinate graphing system makes visible, using points, lines, and curves, the numerical relationships of algebraic equations
- anchor escapement — an escapement in which wedge-shaped pallets engage with an escape wheel having pointed teeth, usually facing in the direction of revolution, so that the escape wheel recoils slightly at every release.
- angle of friction — the angle of a plane to the horizontal when a body placed on the plane will just start to slide. The tangent of the angle of friction is the coefficient of static friction
- anglo-catholicism — the tradition or form of worship in the Anglican Church that emphasizes Catholicity, the apostolic succession, and the continuity of all churches within the communion with pre-Reformation Christianity as well as the importance of liturgy and ritual.
- anionic detergent — any of a class of synthetic compounds whose anions are alkali salts, as soap, or whose ions are ammonium salts.
- annunciation lily — Madonna lily.
- anomalistic month — the interval between two successive passages of the moon through perigee; 27.55455 days
- anthracosilicosis — a form of pneumoconiosis occurring in miners, caused by the inhalation of coal and siliceous particles.
- anthropogenically — In an anthropogenic way.
- anthropologically — the science that deals with the origins, physical and cultural development, biological characteristics, and social customs and beliefs of humankind.
- anthroposemiotics — The study of human communication.
- anti-carcinogenic — any substance or agent that tends to produce a cancer.
- anti-conservatism — the disposition to preserve or restore what is established and traditional and to limit change.
- anti-conservative — disposed to preserve existing conditions, institutions, etc., or to restore traditional ones, and to limit change.
- anti-conventional — conforming or adhering to accepted standards, as of conduct or taste: conventional behavior.
- anti-monopolistic — a person who has a monopoly.
- antiapoptotically — So as to prevent apoptosis.
- anticipatory loss — grief that is felt in anticipation of someone's death
- anticompetitively — In an anticompetitive manner.
- antiferromagnetic — noting or pertaining to a substance in which, at sufficiently low temperatures, the magnetic moments of adjacent atoms point in opposite directions.
- antimiscegenation — (US) against mixing or blending; especially, against the mixing or blending of races in marriage or breeding.
- antimycobacterial — (medicine) That counteracts the effects of mycobacteria.
- antinationalistic — Opposing nationalism.
- apartment complex — An apartment complex is a group of buildings that contain apartments and are managed by the same company.
- apostolic fathers — the Fathers of the early Church who immediately followed the Apostles
- application layer — (networking) The top layer of the OSI seven layer model. This layer handles issues like network transparency, resource allocation and problem partitioning. The application layer is concerned with the user's view of the network (e.g. formatting electronic mail messages). The presentation layer provides the application layer with a familiar local representation of data independent of the format used on the network.
- appointed actuary — An appointed actuary is an actuary appointed by a life insurance company, whose main role is to carry out a regular valuation of the reserves held to pay future policy benefits.
- archconfraternity — a confraternity having the right to associate itself with confraternities that are similar to it, and to impart to them its privileges and indulgences.