20-letter words containing a, t, o, n, i, g

longitudinal section — the representation of an object as it would appear if cut by the vertical plane passing through the longest axis of the object.
lymphogranulomatosis — widespread infectious granuloma of the lymphatic system.
macular degeneration — degeneration of the central portion of the retina, resulting in a loss of sharp vision.
magnetic coefficient — any of various factors affecting the sensitivity of a ship's magnetic compass as a result of its construction or environment.
magnetic declination — variation (def 8).
magnetic inclination — to plunge (something, as a cloth or sponge) temporarily into a liquid, so as to moisten it, dye it, or cause it to take up some of the liquid: He dipped the brush into the paint bucket.
magneto-optical disk — (hardware, storage) (MO) A plastic or glass disk coated with a compound (often TbFeCo) with special optical, magnetic and thermal properties. The disk is read by bouncing a low-intensity laser off the disk. Originally the laser was infrared, but frequencies up to blue may be possible giving higher storage density. The polarisation of the reflected light depends on the polarity of the stored magnetic field. To write, a higher intensity laser heats the coating up to its Curie point, allowing its magnetisation to be altered in a way that is retained when it has cooled. Although optical, they appear as hard drives to the operating system and do not require a special filesystem (they can be formatted as FAT, HPFS, NTFS, etc.). The initial 5.25" MO drives, introduced at the end of the 1980s, were the size of a full-height 5.25" hard drive (like in IBM PC XT) and the disks looked like a CD-ROM enclosed in an old-style cartridge In 2006, a 3.5" drive has the size of 1.44 megabyte diskette drive with disks about the size of a regular 1.44MB floppy disc but twice the thickness.
magnetohydrodynamics — the branch of physics that deals with the motion of electrically conductive fluids, especially plasmas, in magnetic fields. Abbreviation: MHD.
magnification factor — the size of a magnified image of an object divided by the size of the object itself
mail transport agent — Message Transfer Agent
management committee — a committee of managers or senior members of an organization who are in charge of directing that organization
marginal probability — (in a multivariate distribution) the probability of one variable taking a specific value irrespective of the values of the others
mass-energy equation — the equation, E=mc2, formulated by Albert Einstein, expressing the equivalence between mass and energy, where E is energy, m is mass, and c is the velocity of light.
mean something to sb — If a name, word, or phrase means something to you, you have heard it before and you know what it refers to.
molecular geneticist — a specialist in the study of the molecular constitution of genes and chromosomes
monosodium glutamate — a white, crystalline, water-soluble powder, C 5 H 8 NNaO 4 ⋅H 2 O, used to intensify the flavor of foods.
mopping-up operation — an operation after a battle or campaign to root out remaining enemy forces or installations
most general unifier — (logic) If U is the most general unifier of a set of expressions then any other unifier, V, can be expressed as V = UW, where W is another substitution. See also unification.
most significant bit — (MSB) Bit n-1 in an n bit binary number, the bit with the greatest weight (2^(n-1)). The first or leftmost bit when the number is written in the usual way.
net register tonnage — the taxable gross tonnage of a merchant ship.
night storage heater — a heater or radiator that stores heat at night-time because electricity is cheaper
nikkei stock average — an index of prices on the Tokyo Stock Exchange
no lack of something — If you say there is no lack of something, you are emphasizing that there is a great deal of it.
nodding acquaintance — a slight, incomplete, or superficial knowledge (of something or someone): He had only a nodding acquaintance with Italian and didn't trust it to get him through the tour. Although we were neighbors for several years, we had only a nodding acquaintance.
non-volatile storage — (storage) (NVS, persistent storage, memory) A term describing a storage device whose contents are preserved when its power is off. Storage using magnetic media (e.g. magnetic disks, magnetic tape or bubble memory) is normally non-volatile by nature whereas semiconductor memories (static RAM and especially dynamic RAM) are normally volatile but can be made into non-volatile storage by having a (rechargable) battery permanently connected. Other examples of non-volatile storage are EEPROM, CD-ROM, paper tape and punched cards.
nonrepeating decimal — a decimal representation of any irrational number, having the property that no sequence of digits is repeated ad infinitum.
normal magnification — the magnification produced by a telescope or microscope such that the diameter of the exit pupil of the instrument is equal to the diameter of the pupil of the eye.
northern leaf blight — a disease of corn caused by the fungus Exsherohilum turcicum, characterized by elongate tan-gray elliptical spots with subsequent blighting and necrosis of leaves.
norwegian forest cat — a breed of long-haired cat with a long bushy tail and a long mane
nostalgie de la boue — a desire for or attraction to crudity, vulgarity, depravity, etc.
occupation groupings — a system of classifying people according to occupation, based originally on information obtained by government census and subsequently developed by market research. The classifications are used by the advertising industry to identify potential markets. The groups are A, B, C1, C2, D, and E
ode to a nightingale — a poem (1819) by Keats.
off-the-job training — training which is carried out away from your normal place of work
omega-minus particle — a baryon with strangeness −3, isotopic spin 0, and negative charge; predicted from the mathematics of the Eightfold Way and subsequently discovered. Symbol: Ω −.
on the drawing board — in the planning stage
ontological argument — an a priori argument for the existence of God, asserting that as existence is a perfection, and as God is conceived of as the most perfect being, it follows that God must exist; originated by Anselm, later used by Duns Scotus, Descartes, and Leibniz.
open learning centre — an establishment which provides further education on a flexible part-time basis
operant conditioning — conditioning (def 1).
operating conditions — Operating conditions are a set of conditions for operating a particular system or process.
operational strategy — a plan or set of plans for successfully running a business, etc
operator overloading — overloading
optical mark reading — the reading of marks by an optical device whereby the information can be stored in machine-readable form
organization expense — the costs associated with organizing a business entity and bringing it into existence
orthognathic surgery — the surgical correction of deformities or malpositions of the jaw.
oscillating universe — a variant model of the closed universe in which the universe undergoes cycles of expansion and contraction.
ovo-lacto vegetarian — a vegetarian who eats eggs and dairy products
ovo-lacto-vegetarian — lacto-ovo-vegetarian.
oxyacetylene welding — welding using an oxyacetylene burner
patagonian toothfish — a large food fish, Dissostichus eleginoides, found in the cold deep waters of the southern Atlantic and Indian oceans
perpendicular gothic — the style of Gothic architecture in England during the 14th and 15th centuries, characterized by tracery having vertical lines, a four-centred arch, and fan vaulting

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