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15-letter words containing s

  • achlorophyllous — containing no chlorophyll.
  • achromatic lens — a system of two or more lenses that is substantially free from chromatic aberration and in which the lenses are made of different substances so that the focal length of the system is the same for two or three wavelengths of light.
  • acid test ratio — a ratio of cash, receivables, and marketable securities to current liabilities, used in determining credit risks.
  • acknowledgments — a section of text containing an author’s statement acknowledging his or her use of the works of other authors and thanking the people who have helped him or her, usually printed at the front of a book
  • acoustic guitar — an ordinary guitar, which produces its normal sound through the sounding board and is not amplified in any way
  • acoustic screen — a fabric-covered, double-sided screen used in open areas such as offices to absorb noise
  • acoustical tile — tile made in various sizes and textures from soft, usually fibrous, sound-absorbing material, as wood, cork, or metal, and typically applied to ceilings or walls.
  • acousticophobia — Fear of noise.
  • acoustoelectric — electroacoustic.
  • acquisitiveness — tending or seeking to acquire and own, often greedily; eager to get wealth, possessions, etc.: our acquisitive impulses; acquisitive societies.
  • acrimoniousness — The quality of being resentful or cynical.
  • acroanaesthesia — (pathology) Loss of sensation in the extremities.
  • act of congress — a law that has been passed by both houses of the US Congress and signed by the president; if the president has chosen to veto the bill, it can be passed by a two-thirds majority in Congress
  • actinide series — a series of 15 radioactive elements with increasing atomic numbers from actinium to lawrencium
  • actinium series — a radioactive decay series that starts with uranium-235 and ends with lead-207
  • actinochemistry — the branch of chemistry dealing with actinism; photochemistry.
  • action stations — the positions taken up by individuals in preparation for or during a battle
  • activity series — a table of metals, listed in the order of their ability to replace other metals while in solution
  • acute bisectrix — See under bisectrix (def 1).
  • adamawa-eastern — a branch of the Niger-Congo family of languages, centered in Nigeria, Cameroon, Chad, and the Central African Republic, including Sango and Zande.
  • adaptive optics — a technique used to increase the resolution of a ground-based astronomical telescope by counteracting the effects of the atmosphere on the image. A deforming mirror in the light path of the telescope maintains a pointlike image of the celestial body using either a real star or a laser beam as a reference
  • 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.
  • adhesive factor — the ratio of the force that can be exerted on driving wheels with full traction to the weight on the driving wheels, usually expressed as a percentage.
  • adjacent angles — two angles that have the same vertex and a side in common
  • adjustable-rate — designating or of a debt obligation, esp. a mortgage on real property, having terms which allow the interest rate to change over time
  • 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 house — the official residence of the Governor General of Australia, in Sydney
  • 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
  • adrenoreceptors — Plural form of adrenoreceptor.
  • adventuresomely — In an adventuresome manner.
  • adventurousness — the quality of being adventurous
  • advertising man — adman (def 1).
  • aegyptopithecus — a genus of extinct anthropoid ape of the Oligocene Period known from remains found in Egypt.
  • aerodynamicists — Plural form of aerodynamicist.
  • aerotitis media — temporary deafness and pain arising from traumatic inflammation of the middle ear, caused by a rapid change in barometric pressure, as a rise in ambient cabin pressure in an aircraft descending from high altitude for landing.
  • afars and issas — French Territory of the, a former name of Djibouti (def 1).
  • affirmativeness — The property of being affirmative.
  • after a fashion — If you say that something was done after a fashion, you mean that it was done, but not very well.
  • aftershave balm — a soothing lotion for application to the face after shaving
  • age of aquarius — an astrological era believed to bring increased spirituality and harmony on earth.
  • aggregate score — a score calculated by adding the results of several matches
  • 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
  • agriculturalist — An agriculturalist is someone who is an expert on agriculture and who advises farmers.
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