20-letter words containing i, m, u, n, o

multipart stationery — continuous stationery comprising two or more sheets, either carbonless or with carbon paper between the sheets
multiple personality — a rare disorder in which an individual displays several functionally dissociated personalities, each of a complexity comparable to that of a normal individual.
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.
multistep hydroplane — a motorship having a flat bottom built as a series of planes inclined forward, the ship planing on each from stem to stern as its speed increases.
mum-and-dad investor — a small-scale non-professional investor
net domestic product — the gross domestic product minus an allowance for the depreciation of capital goods
non-optimal solution — (Or "sub-optimal solution") An astoundingly stupid way to do something. This term is generally used in deadpan sarcasm, as its impact is greatest when the person speaking looks completely serious. See also Bad Thing.
not mince your words — If you say that someone does not mince their words, you mean that they speak in a forceful and direct way, especially when saying something unpleasant to someone.
notre dame mountains — a mountain range in E Quebec, Canada, an extension of the Green Mountains in Vermont and a portion of the Appalachian Mountains: about 500 miles (800 km) long, rising about 2000 feet (610 meters).
nummulitic limestone — limestone composed predominantly of fossil nummulites.
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 −.
one's misspent youth — the period when one is young and spend's one's time doing foolish, bad, or frivolous things
one's spiritual home — Your spiritual home is the place where you feel that you belong, usually because your ideas or attitudes are the same as those of the people who live there.
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.
parametric equations — one of two or more equations expressing the location of a point on a curve or surface by determining each coordinate separately.
pentobarbital sodium — a barbiturate drug used in medicine as a sedative and hypnotic. Formula: C11H17N2O3Na
permonosulfuric acid — persulfuric acid (def 1).
polymorphic function — a function in a computer program that can deal with a number of different types of data
population parameter — a quantity or statistical measure that, for a given population, is fixed and that is used as the value of a variable in some general distribution or frequency function to make it descriptive of that population: The mean and variance of a population are population parameters.
potassium antimonate — a white, crystalline, slightly water-soluble powder, KSbO 3 , used chiefly as a pigment in paints.
potassium binoxalate — a white, crystalline, hygroscopic, poisonous solid, KHC 2 O 4 , that is usually hydrated: used chiefly for removing ink stains, cleaning metal and wood, and in photography.
precision instrument — finely-tuned device
premenstrual tension — Premenstrual tension is the same as premenstrual syndrome. The abbreviation PMT is often used.
prime number theorem — the theorem that the number of prime numbers less than or equal to a given number is approximately equal to the given number divided by its natural logarithm.
prince william sound — a sound in the Gulf of Alaska, on the S coast of Alaska: S end of Trans-Alaska oil pipeline at port of Valdez.
production agreement — a contract concerning the production or manufacture of something
programming language — a high-level language used to write computer programs, as COBOL or BASIC, or, sometimes, an assembly language.
public administrator — an official of a city, county, or state government.
punch a (time) clock — to insert a timecard into a time clock when coming to or going from work
quaker meeting house — a place where Quakers gather for worship
quantum bogodynamics — /kwon'tm boh"goh-di:-nam"iks/ A theory that characterises the universe in terms of bogon sources (such as politicians, used-car salesmen, TV evangelists, and suits in general), bogon sinks (such as taxpayers and computers), and bogosity potential fields. Bogon absorption causes human beings to behave mindlessly and machines to fail (and may also cause both to emit secondary bogons); however, the precise mechanics of bogon-computron interaction are not yet understood. Quantum bogodynamics is most often invoked to explain the sharp increase in hardware and software failures in the presence of suits; the latter emit bogons, which the former absorb.
quantum field theory — any theory in which fields are treated by the methods of quantum mechanics; each field can then be regarded as consisting of particles of a particular kind, which may be created and annihilated.
retirement community — a group of houses in a suburban area or a town designed primarily for retired persons.
return on investment — the amount of profit, before tax and after depreciation, from an investment made, usually expressed as a percentage of the original total cost invested. Abbreviation: ROI.
rocky mountain basic — (language) The BASIC language used by Hewlett Packard on their 680x0-based computers. Rocky Mountain Basic is good for interfaces to IEEE 488 controls and contains many mathematical and matrix functions. It has about 600 commands. Typical applications include automatic test stations.
rocky mountain sheep — bighorn.
rotations per minute — revolutions per minute
run-time environment — (operating system) A collection of subroutines and environment variables that provide commonly used functions and data for a program while it is running. Compare run-time support.
saint john ambulance — an organization that provides first aid and first-aid training
saint thomas aquinas — Saint, Aquinas, Saint Thomas.
secure accommodation — an institution where young offenders are kept in custody
snow-on-the-mountain — a North American euphorbiaceous plant, Euphorbia marginata, having white-edged leaves and showy white bracts surrounding small flowers
sodium meta-arsenite — sodium arsenite.
sound motion picture — a motion picture with a soundtrack.
south american plate — a major tectonic division of the earth's crust, comprising the continent of South America and several ocean basins and bounded on the north by the Caribbean Plate, on the east by the Mid-Atlantic Ridge, on the west by a submarine trench that borders the western coast of the continent, and on the south by the Antarctic Plate.
space-time continuum — Also called space-time continuum. the four-dimensional continuum, having three spatial coordinates and one temporal coordinate, in which all physical quantities may be located.
spike someone's guns — a weapon consisting of a metal tube, with mechanical attachments, from which projectiles are shot by the force of an explosive; a piece of ordnance.
summary jurisdiction — the right a court has to adjudicate immediately upon some matter arising during its proceedings
sunday-go-to-meeting — most presentable; best: Sunday-go-to-meeting clothes.
systemic circulation — the circulatory system in general.

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