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18-letter words containing a, m, p

  • geometrical optics — the branch of optics dealing with light as rays, especially in the study of the effects of lenses and mirrors on light beams and of their combination in optical instruments.
  • giant peacock moth — the largest European moth, an emperor, Saturnia pyri, reaching 15 cm (6 in.) in wingspan. It is mottled brown with a prominent ocellus on each wing and being night-flying can be mistaken for a bat
  • give someone pause — to make someone hesitant or uncertain
  • grampian mountains — a mountain system of central Scotland, extending from the southwest to the northeast and separating the Highlands from the Lowlands. Highest peak: Ben Nevis, 1344 m (4408 ft)
  • gravity escapement — an escapement, used especially in large outdoor clocks, in which the impulse is given to the pendulum by means of a weight falling through a certain distance.
  • grease the palm of — to influence by giving money to; bribe
  • grumbling appendix — a condition in which the appendix causes intermittent pain but appendicitis has not developed
  • gum digger's spear — a long steel probe used by gum diggers digging for kauri gum
  • hamilton's problem — Hamiltonian problem
  • handyman's special — fixer-upper.
  • hearing impairment — partial deafness
  • hepatosplenomegaly — Enlargement of both the liver and spleen.
  • hermaphrodite brig — a two-masted sailing vessel, square-rigged on the foremast and fore-and-aft-rigged on the mainmast.
  • histocompatibility — the condition of having antigenic similarities such that cells or tissues transplanted from one (the donor) to another (the recipient) are not rejected.
  • histomorphological — histology.
  • human rights group — a group that campaigns for human rights
  • hungry programmers — (body)   A group of programmers producing free software.
  • hydroxytryptamines — Plural form of hydroxytryptamine.
  • hyper-metaphorical — a figure of speech in which a term or phrase is applied to something to which it is not literally applicable in order to suggest a resemblance, as in “A mighty fortress is our God.”. Compare mixed metaphor, simile (def 1).
  • hyperaldosteronism — aldosteronism.
  • hyperbaric chamber — a steel vessel in which atmospheric pressure can be raised or lowered by air compressors, used to treat divers or pilots afflicted with aeroembolism and to provide high-oxygen environments for certain medical treatments and operations.
  • hyperbilirubinemia — an abnormally high level of bilirubin in the blood, manifested by jaundice, anorexia, and malaise, occurring in association with liver disease and certain hemolytic anemias.
  • hypercholesteremia — Alternative spelling of hypercholesteraemia.
  • hypochromic anemia — an anemia characterized by an abnormally low concentration of hemoglobin in the red blood cells, often due to iron deficiency.
  • hypoparathyroidism — Diminished concentration of parathyroid hormone in the blood, which causes deficiencies of calcium and phosphorus compounds in the blood and results in muscular spasms.
  • imaginary operator — An imaginary operator is the part of a complex number that defines the magnitude of the part of the complex number at right angles to the real number part.
  • immunopharmacology — the branch of pharmacology concerned with the immune system
  • impedance matching — the technique of choosing or adjusting electric circuits and components so that the impedance of the load is equal to the internal impedance of the power source, thereby optimizing the power transfer from source to load.
  • impingement attack — a form of corrosion of metals caused by erosion of the oxide layer by a moving fluid in which there are suspended particles or air bubbles
  • imploded consonant — a consonant which is pronounced with or by implosion
  • impressionableness — The quality of being impressionable.
  • in company with sb — If you feel, believe, or know something in company with someone else, you both feel, believe, or know it.
  • in comparison with — when compared to
  • in compliance with — in accordance with
  • incremental backup — (operating system)   A kind of backup that copies all files which have changed since the date of the previous backup. The first backup of a file system should include all files - a "full backup". Call this level 0. The next backup could also be a full level 0 backup but it is usually much quicker to do a level 1 backup which will include only those files which have changed since the level 0 backup. Together the level 0 and level 1 backups will include the latest version of every file. Level 1 backups can be made until, say, the backup tape is nearly full, after which we can switch to level 2. Each level includes those files which have changed since the last backup at a lower level. The more levels you use, the longer it will take to restore the latest version of a file (or all files) if you don't know when it was last modified. Compare differential backup.
  • inner automorphism — an automorphism that maps an element x into an element of the form axa −1 where a −1 is the inverse of a.
  • investment company — a company that invests its funds in other companies and issues its own securities against these investments.
  • iomega corporation — (company, storage)   A storage device manufacturer whose major products are the Zip and Jaz removable disk drives and Ditto tape drives. They became popular with an early product called the Bernoulli Box. These products fall in line with their focus set in 1994 "to help people manage their stuff". The company's stated aim is to create portable, fast, large and cheap storage solutions. Iomega's major competitor in the growing market for removable disks is SyQuest, who seem to always be a few weeks behind them. In general, Iomega target the Small Office/Home Office. They are also investigating the growing digital photography market which also needs large removable storage devices. Iomega's president and CEO is Kim Edwards. They have nearly 2000 employees in offices world-wide. Revenue for the quarter ending Dec 1996 was $371 million and net income was $20 million. Headquarters: Roy, Utah, USA.
  • isothermal process — a process that takes place without change in temperature.
  • japanese andromeda — an Asian evergreen shrub, Pieris japonica, of the heath family, having broad, glossy leaves and drooping clusters of whitish blossoms.
  • japanese persimmon — the soft, orange or reddish, edible fruit of an Asian tree, Diospyros kaki.
  • justice department — the United States federal department for enforcing federal laws
  • kura kaupapa māori — a primary school where teaching is based on Māori language and culture
  • light displacement — the weight of a ship with all its permanent equipment, excluding the weight of cargo, persons, ballast, dunnage, and fuel, but usually including the weight of permanent ballast and water used to operate steam machinery.
  • limestone pavement — a horizontal surface of exposed limestone in which the joints have been enlarged, cutting the surface into roughly rectangular blocks
  • linear programming — any of several methods for finding where a given linear function of several nonnegative variables assumes an extreme value and for determining the extreme value, the variable usually being subjected to constraints in the form of linear equalities or inequalities.
  • logarithmic spiral — log r = aθ
  • logical complement — (logic)   In Boolean algebra, the logical complement or negation of a Boolean value is the opposite value, given by the following truth table: A | -A --+--- T | F F | T -A is also written as A with a bar over it or with a small vertical line hanging from the right-hand end of the "-" (LaTeX \neg) or as A'. In the C programming language, it is !A and in digital circuit design, /A.
  • logical positivism — a philosophical movement that stresses the function of philosophy as a method of criticizing and analyzing science and that rejects all transcendental metaphysics, statements of fact being held to be meaningful only if they have verifiable consequences in experience and in statements of logic, mathematics, or philosophy itself, and with such statements of fact deriving their validity from the rules of language.
  • lone-parent family — a family in which there is only one parent
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