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15-letter words containing i, a, n

  • actinopterygian — belonging or pertaining to the Actinopterygii, a group of bony fishes.
  • action painting — a development of abstract expressionism evolved in the 1940s, characterized by broad vigorous brush strokes and accidental effects of thrown, smeared, dripped, or spattered paint
  • action reporter — a news reporter who reports to the public on matters of special interest to the consumer.
  • action stations — the positions taken up by individuals in preparation for or during a battle
  • active hydrogen — hydrogen in the form of single atoms, rather than molecules, which makes it extremely reactive.
  • active immunity — immunity (to a disease) due to the production of antibodies by the body
  • acyclic terpene — (originally) any of a class of monocyclic hydrocarbons of the formula C 10 H 16 , obtained from plants.
  • addressing mode — 1.   (processor, programming)   One of a set of methods for specifying the operand(s) for a machine code instruction. Different processors vary greatly in the number of addressing modes they provide. The more complex modes described below can usually be replaced with a short sequence of instructions using only simpler modes. The most common modes are "register" - the operand is stored in a specified register; "absolute" - the operand is stored at a specified memory address; and "immediate" - the operand is contained within the instruction. Most processors also have indirect addressing modes, e.g. "register indirect", "memory indirect" where the specified register or memory location does not contain the operand but contains its address, known as the "effective address". For an absolute addressing mode, the effective address is contained within the instruction. Indirect addressing modes often have options for pre- or post- increment or decrement, meaning that the register or memory location containing the effective address is incremented or decremented by some amount (either fixed or also specified in the instruction), either before or after the instruction is executed. These are very useful for stacks and for accessing blocks of data. Other variations form the effective address by adding together one or more registers and one or more constants which may themselves be direct or indirect. Such complex addressing modes are designed to support access to multidimensional arrays and arrays of data structures. The addressing mode may be "implicit" - the location of the operand is obvious from the particular instruction. This would be the case for an instruction that modified a particular control register in the CPU or, in a stack based processor where operands are always on the top of the stack. 2. In IBM System 370/XA the addressing mode bit controls the size of the effective address generated. When this bit is zero, the CPU is in the 24-bit addressing mode, and 24 bit instruction and operand effective addresses are generated. When this bit is one, the CPU is in the 31-bit addressing mode, and 31-bit instruction and operand effective addresses are generated.
  • adenocarcinomas — Plural form of adenocarcinoma.
  • adenohypophysis — the anterior lobe of the pituitary gland
  • adenoidectomies — Plural form of adenoidectomy.
  • adjectivization — Grammar. to make into an adjective, as by adding a suffix: The noun mirth can be adjectivized by adding -ful or -less to form the adjectives mirthful and mirthless.
  • adlai stevenson — Adlai Ewing [ad-ley yoo-ing] /ˈæd leɪ ˈyu ɪŋ/ (Show IPA), 1835–1914, vice president of the U.S. 1893–97.
  • administrations — Plural form of administration.
  • admiralty inlet — an arm of the Pacific Ocean in NW Washington, at the entry to Puget Sound.
  • admiralty range — a mountain range in Antarctica, on the coast of Victoria Land, northwest of the Ross Sea
  • adoption agency — an agency that matches children needing adoption with people willing to adopt
  • adoption papers — documentation relating to the adoption of a particular child
  • adrenalectomies — Plural form of adrenalectomy.
  • adrenaline rush — a feeling of excitement, stimulation and enhanced physical ability produced when the body secretes large amounts of adrenaline in response to a sudden perceived or induced stress situation
  • adult education — Adult education is education for adults in a variety of subjects, most of which are practical, not academic. Classes are often held in the evenings.
  • advanced credit — credit toward a degree allowed to a student by a college for courses taken elsewhere or for high scores on preliminary examinations
  • advanced higher — the highest level of qualification offered within the school system, replacing the former Certificate of Sixth Year Studies
  • advertising man — adman (def 1).
  • aerial pingpong — Australian Rules football
  • aerobic dancing — a system of exercises combining aerobics with dance steps and usually done to music.
  • aerodynamically — the branch of mechanics that deals with the motion of air and other gases and with the effects of such motion on bodies in the medium. Compare aerostatics (def 1).
  • aerodynamicists — Plural form of aerodynamicist.
  • afars and issasFrench Territory of the, a former name of Djibouti (def 1).
  • affine geometry — the branch of geometry dealing with affine transformations.
  • affirmativeness — The property of being affirmative.
  • african buffalo — Cape buffalo.
  • africanized bee — a hybrid of African and European honeybees, developed in Brazil and known for its disease resistance and superior honey production
  • after a fashion — If you say that something was done after a fashion, you mean that it was done, but not very well.
  • again and again — You can use again and again or time and again to emphasize that something happens many times.
  • agranulocytosis — a serious and sometimes fatal illness characterized by a marked reduction of leucocytes, usually caused by hypersensitivity to certain drugs
  • agribusinessman — a person who engages in agribusiness
  • agro-industrial — the large-scale production, processing, and packaging of food using modern equipment and methods.
  • ah, wilderness! — a comedy (1933) by Eugene O'Neill.
  • air conditioned — If a room or vehicle is air conditioned, the air in it is kept cool and dry by means of a special machine.
  • air conditioner — An air conditioner is a machine which keeps the air in a building cool and dry.
  • air-raid warden — a member of a civil defence organization responsible for enforcing regulations, etc, during an air attack
  • airborne attack — an attack involving airborne troops
  • airconditioning — Alternative spelling of air conditioning.
  • aircraft hangar — a large workshop or building for storing and maintaining aircraft
  • airing cupboard — In British houses, an airing cupboard is a warm cupboard where you put clothes and other things that have been washed and partly dried, to make sure they are completely dry.
  • airmail edition — an edition of a newspaper that is printed on very thin paper so it is easier and cheaper to distribute
  • airs and graces — If you refer to someone's airs and graces, you mean that they behave in a way that shows that they think they are more important than other people.
  • aix-en-provence — a city and spa in SE France: the medieval capital of Provence. Pop: 145 721 (2006)
  • akimiski island — an island in SW James Bay, in the SE Northwest Territories, in S central Canada. About 898 sq. mi. (2326 sq. km).
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