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

management committee — a committee of managers or senior members of an organization who are in charge of directing that organization
master of ceremonies — a person who directs the entertainment at a party, dinner, nightclub, radio or television broadcast, or the like, acting as host and introducing the speakers or performers. Abbreviation: M.C., MC.
material implication — equivalence (def 4a).
media access control — (networking) (MAC) The lower sublayer of the OSI data link layer. The interface between a node's Logical Link Control and the network's physical layer. The MAC differs for various physical media. See also MAC Address, Ethernet, IEEE 802.3, token ring.
medical practitioner — doctor
menstrual extraction — an abortion procedure involving suction aspiration of the uterine contents early in gestation, before the first missed menstrual period: sometimes performed later.
meta-dichlorobenzene — a colorless liquid, C 6 H 4 Cl 2 , soluble in alcohol and ether: used as a fumigant and insecticide.
microcrystalline wax — Microcrystalline wax is a wax used as a stiffening agent and as a coating agent for tablets and capsules.
microminiaturization — extreme miniaturization, especially of electronic equipment, with extensive use of integrated circuits.
minkowski space-time — a four-dimensional space in which three coordinates specify the position of a point in space and the fourth represents the time at which an event occurred at that point
mischaracterizations — Plural form of mischaracterization.
missionary apostolic — an honorary title conferred by the pope on certain missionaries.
molecular geneticist — a specialist in the study of the molecular constitution of genes and chromosomes
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.
mountain rescue team — a group of people who conduct search and rescue on a mountain, for example of someone who has fallen, got lost, etc
multiplication table — Arithmetic. a tabular listing of the products of any two numbers of a set, usually of the integers 1 through 10 or 1 through 12.
neapolitan ice cream — variously flavored and colored ice cream and ice mixtures frozen in layers.
nemine contradicente — no one contradicting; unanimously.
net national product — the gross national product less allowance for depreciation of capital goods. Abbreviation: NNP.
neuropsychiatrically — In terms of neuropsychiatry.
neutral interconnect — Network infrastructure where network service providers can freely exchange traffic without policy restrictions. Examples are the GIX (Global Internet Exchange) at MAE-East (A Metropolitan Area Ethernet around Washington), and the Ebone (European Backbone). There is currently (November 1993) no UK Neutral Interconnect.
new democratic party — the Canadian social democratic party formed in 1961
nickel tetracarbonyl — nickel carbonyl.
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-sensationalistic — subject matter, language, or style producing or designed to produce startling or thrilling impressions or to excite and please vulgar taste.
nonaccidental injury — damage, such as a bruise, burn, or fracture, deliberately inflicted on a child or an old person
noncatalytic reactor — A noncatalytic reactor is a reactor in which no catalyst is used.
nondirective therapy — client-centered therapy.
nonrepeating decimal — a decimal representation of any irrational number, having the property that no sequence of digits is repeated ad infinitum.
nonsense correlation — a correlation supported by data but having no basis in reality, as between incidence of the common cold and ownership of televisions
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.
north american plate — a major tectonic division of the earth's crust, comprising Greenland and the continent of North America and the suboceanic Labrador and North American Basins, and bounded on the east by the Mid-Atlantic Ridge, on the south by the Caribbean and South American Plates, and on the west by the San Andreas fault and Aleutian Trench.
north atlantic drift — an ocean current flowing NE toward the British Isles, formed by the convergence of the Gulf Stream and the Labrador Current SE of Newfoundland.
north canadian river — a river in NE New Mexico, E Texas, and E Oklahoma, flowing SE to the Canadian River. 760 miles (1223 km) long.
north celestial pole — the point of intersection of the earth's extended axis and the northern half of the celestial sphere, lying about 1° from Polaris
north richland hills — a town in N Texas.
northern white cedar — any of several chiefly coniferous trees valued for their wood, especially Chamaecyparis thyoides, of the eastern U.S., or Thuja occidentalis (northern white cedar) of northeastern North America.
norwegian forest cat — a breed of long-haired cat with a long bushy tail and a long mane
occupation franchise — the right of a tenant to vote in national and local elections
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
occupational disease — Also called industrial disease. a disease caused by the conditions or hazards of a particular occupation.
occupational pension — a pension scheme provided for the members of a particular occupation or by a specific employer or group of employers
occupational therapy — a form of therapy in which patients are encouraged to engage in vocational tasks or expressive activities, as art or dance, usually in a social setting.
of no/little account — If you say that something is of no account or of little account, you mean that it is very unimportant and is not worth considering.
olfactory anesthesia — absence or loss of the sense of smell.
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 that/this account — You can use on that account or on this account when you want to say that something happens for the reason you have just mentioned.
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.

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