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17-letter words containing o, r

  • adventure tourism — tourism involving activities that are physically challenging
  • adventuresomeness — The state or quality of being adventuresome.
  • adverse selection — Adverse selection is a term used to describe the tendency of those in dangerous jobs or with high-risk lifestyles to want to take out life insurance.
  • aerial photograph — a photograph taken from the air
  • aerobic digestion — Aerobic digestion is a process which uses bacteria and oxygen to break down organic and biological waste.
  • aerobic-exercises — Also called aerobic exercises. (used with a plural verb) any of various sustained exercises, as jogging, rowing, swimming, or cycling, that stimulate and strengthen the heart and lungs, thereby improving the body's utilization of oxygen.
  • aerothermodynamic — Of or pertaining to aerothermodynamics.
  • affaire d'honneur — a duel
  • affiliation order — (formerly) an order made by a magistrates' court that a man adjudged to be the father of an illegitimate child shall contribute a specified periodic sum towards the child's maintenance
  • african army worm — the caterpillar of a widely distributed noctuid moth, Spodoptera exempta, which travels in vast hordes and is a serious pest of cereal crops and grasses in Africa and parts of Australia
  • afternoon session — a part of an event taking place in the afternoon
  • aftershave lotion — a lotion, usually styptic and perfumed, for application to the face after shaving
  • age before beauty — (often said humorously when yielding precedence) older people take precedence over younger people
  • 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.
  • agree to disagree — If two people who are arguing about something agree to disagree or agree to differ, they decide to stop arguing because neither of them is going to change their opinion.
  • agreement to sell — a contract between two parties in which one party agrees to sell something to the other
  • agricultural show — a display of agricultural equipment and livestock, often including competitions, entertainment, and a trade fair
  • air-transportable — that can be transported by aircraft: air-transportable equipment.
  • 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 over the shop — If something is happening all over the shop, it is happening in many different places or throughout a wide area.
  • all the better to — more suitable to
  • all-purpose flour — All-purpose flour is flour that does not make cakes and cookies rise when they are baked because it has no chemicals added to it.
  • all-weather court — a tennis court suitable to be used in all kinds of weather
  • allende meteorite — a carbonaceous chondrite meteorite that fell over northern Mexico in 1969: one of the largest recorded falls of a stony meteorite.
  • alligator snapper — a large, freshwater snapping turtle (Macroclemys temmincki) of the SE U.S. and the Mississippi Valley, found chiefly in rivers and bayous: it may weigh up to 100 kg (220 lb)
  • almost everywhere — everywhere in a given set except on a subset with measure zero. Abbreviation: a.e.
  • alpha-fetoprotein — a protein that forms in the liver of the human fetus. Excessive quantities in the amniotic fluid and maternal blood may indicate spina bifida in the fetus; low levels may point to Down's syndrome
  • alphaphotographic — Of or pertaining to alphaphotographics.
  • altamonte springs — a city in central Florida.
  • alternating group — the subgroup consisting of all even permutations, of the group of all permutations of a finite set.
  • aluminum chloride — a yellow-white, crystalline, water-soluble solid that in its white hydrated form, AlCl 3 ⋅6H 2 O, is used chiefly as a wood preservative and in its yellow-white anhydrous form, AlCl 3 , chiefly as a catalyst.
  • ambrette-seed oil — a yellow oil expressed from ambrette seeds, used as a fixative in the manufacture of perfume.
  • 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.
  • american foxhound — one of an American breed of medium-sized dogs having a smooth, glossy coat usually black, tan, and white in color, a square-cut muzzle, hanging ears, and a moderately high-set tail, used for hunting both in packs or individually, tailing the game by scent.
  • american hornbeam — any North American shrub or tree belonging to the genus Carpinus, of the birch family, yielding a hard, heavy wood, as C. caroliniana (American hornbeam)
  • american woodbine — a North American plant, related to the honeysuckle, Lonicera caprifolium
  • american wormseed — a plant with seeds used in medicine to treat worm infestation, Chenopodium ambrosioides
  • ammonium chloride — a white soluble crystalline solid used chiefly as an electrolyte in dry batteries and as a mordant and soldering flux. Formula: NH4Cl
  • ammonium stearate — a tan, waxlike, water-insoluble solid, C 18 H 39 NO 2 , used chiefly in the manufacture of cosmetics.
  • 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.
  • an effort of will — If you do something difficult or painful by an effort of will, you manage to make yourself do it.
  • an eye for an eye — You say 'an eye for an eye' or 'an eye for an eye and a tooth for a tooth' to refer to the idea that people should be punished according to the way in which they offended, for example if they hurt someone, they should be hurt equally badly in return.
  • anabolic steroids — a synthetic derivative of testosterone, sometimes used by athletes to help increase weight and strength.
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