18-letter words containing o, r, a, t, i, e
- (go) off the rails — (to go) off the proper course
- (in) the worst way — very much; greatly
- a foot in the door — an action, appointment, etc, that provides an initial step towards a desired goal, esp one that is not easily attainable
- a piece of crumpet — a sexually desirable woman
- a shot in the dark — If you describe something someone says or does as a shot in the dark or a stab in the dark, you mean they are guessing that what they say is correct or that what they do will be successful.
- abortion-on-demand — the right of a woman to have an abortion during the first six months of a pregnancy.
- accident proneness — the unconscious tendency, thought to exist in some people, to involve themselves in a large number of accidents
- according to hoyle — according to the rules and regulations; in the prescribed, fair, or correct way
- account receivable — a current asset account showing amounts payable to a firm by customers who have made purchases of goods and services on credit
- accretionary wedge — a body of deformed sediments, wedge-shaped in two dimensions or prism-shaped in three dimensions, that has been scraped off the surface of the oceanic lithosphere as it moves downwards beneath a continent or island arc. The sediments are added to the continental edge
- acid precipitation — meteorological precipitation that is relatively acidic.
- acoustic inertance — inertance.
- acoustic reactance — acoustic impedance caused by the inertia and elasticity of the transmitting medium.
- activated charcoal — a form of carbon having very fine pores: used chiefly for adsorbing gases or solutes, as in various filter systems for purification, deodorization, and decolorization.
- adaptive radiation — evolution of a number of divergent species from a common ancestor, each species becoming adapted to occupy a different environment. This type of evolution occurred in the Tertiary manuals and the Mesozoic reptiles
- address resolution — (networking) Conversion of an Internet address into the corresponding physical address (Ethernet address). This is usually done using Address Resolution Protocol. The resolver is a library routine and a set of processes which converts hostnames into Internet addresses, though this process in not usually referred to as resolution. See DNS.
- adenocarcinomatous — Of or pertaining to adenocarcinomas.
- admirable crichton — a comedy (1902) by Sir James M. Barrie.
- aerial photography — Aerial photography is the process of taking photographs of an area from above, for example from an airplane or mast.
- aeronautical chart — a topographic map of an area of the earth's surface, designed as an aid to aircraft navigation
- aerothermodynamics — the study of the exchange of heat between solids and gases, esp of the heating effect on aircraft flying through the air at very high speeds
- affective disorder — any mental disorder, such as depression or mania, that is characterized by abnormal disturbances of mood
- affirmative action — Affirmative action is the policy of giving jobs and other opportunities to members of groups such as racial minorities or women who might not otherwise have them.
- age discrimination — discrimination against older people, especially by employers
- agri-environmental — of or relating to the impact of agricultural practices on the environment
- agro-industrialize — to industrialize the agriculture of: to agro-industrialize a developing nation.
- ahead of your time — If someone is ahead of their time or before their time, they have new ideas a long time before other people start to think in the same way.
- air-to-air missile — a missile fired from an aircraft that targets other aircraft in flight
- air-to-sea missile — a missile fired from an aircraft that has a target on the sea
- airspeed indicator — a dial that indicates the airspeed at which an aircraft is travelling
- alexander hamilton — Alexander, 1757–1804, American statesman and writer on government: the first Secretary of the Treasury 1789–97; mortally wounded by Aaron Burr in a duel.
- algebraic equation — an equation in the form of a polynomial having a finite number of terms and equated to zero, as 2 x 3 + 4 x 2 − x + 7 = 0.
- algebraic function — any function which can be constructed in a finite number of steps from the elementary operations and the inverses of any function already constructed
- algebraic geometry — the study of sets that are defined by algebraic equations.
- algebraic notation — the standard method of denoting the squares on the chessboard, by allotting a letter, a, b, c, up to h, to each of the files running up the board from White's side, starting from the left, and a number to each of the ranks across the board, starting with White's first rank
- algebraic topology — the branch of mathematics that deals with the application of algebraic methods to topology, especially the study of homology and homotopy.
- alkali metaprotein — a metaprotein derived by means of a hydrolytic alkali.
- alternative comedy — a style of comedy originating in the UK in the 1980s that seeks to avoid racist or sexist stereotypes, and usually puts forward left-wing, anti-establishment views
- alternative school — any public or private school having a special curriculum, especially an elementary or secondary school offering a more flexible program of study than a traditional school.
- ammonium carbamate — a white soluble crystalline compound produced by reaction between dry ammonia and carbon dioxide and used as a nitrogen fertilizer. Formula: (NH4)CO2NH2
- ammonium carbonate — an unstable pungent soluble white powder that is a double salt of ammonium bicarbonate and ammonium carbamate: used in the manufacture of baking powder, smelling salts, and ammonium compounds. Formula: (NH4)HCO3.(NH4)CO2NH2
- ammonium purpurate — murexide.
- anterior pituitary — a small, somewhat cherry-shaped double structure attached by a stalk to the base of the brain and constituting the master endocrine gland affecting all hormonal functions in the body, consisting of an anterior region ((anterior pituitary) or (adenohypophysis)) that develops embryonically from the roof of the mouth and that secretes growth hormone, LH, FSH, ACTH, TSH, and MSH, a posterior region ((posterior pituitary) or (neurohypophysis)) that develops from the back of the forebrain and that secretes the hormones vasopressin and oxytocin, and an intermediate part (pars intermedia) derived from the anterior region but joined to the posterior region, that secretes the hormone MSH in lower vertebrates.
- anthropocentricity — the state or quality of being anthropocentric.
- anti-commercialism — the principles, practices, and spirit of commerce.
- anti-revolutionary — of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change: a revolutionary junta.
- anticholinesterase — any of a group of substances that inhibit the action of cholinesterase
- anticipated profit — the profit that one expects to make from a deal, transaction, or project
- antiferromagnetism — the phenomenon exhibited by substances that resemble paramagnetic substances in the value of their relative permeability but that behave like ferromagnetic substances when their temperature is varied
- antisegregationist — opposed to the segregation of different races in any human activity
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