18-letter words containing m, c, n, u
- mortgage insurance — policy to compensate for property loan payments
- moulding technique — the technique used to shape a material into a frame or mould
- mountain cranberry — cowberry
- mozambique channel — a channel in SE Africa, between Mozambique and Madagascar. 950 miles (1530 km) long; 250–550 miles (400–885 km) wide.
- much of a muchness — very similar
- multicast backbone — (MBONE) A virtual network on top of the Internet which supports routing of IP multicast packets, intended for multimedia transmission. MBONE gives public access desktop video communications. The quality is poor with only 3-5 frames per second instead of the 30 frames per second of commercial television. Its advantage is that it avoids all telecommunications costs normally associated with teleconferencing. An interesting innovation is the use of MBONE for audio communications and an electronic "whiteboard" where the computer screen becomes a shared workspace where two physically remote parties can draw on and edit shared documents in real-time.
- multifunctionality — The condition of being multifunctional.
- multimedia machine — machines that allow users to control and manipulate sound, video, text and graphics
- multiple collision — an accident in which several cars crash into each other
- multiply-connected — connected but not simply-connected.
- musical instrument — music
- neuropsychodynamic — Of or pertaining to neuropsychodynamics.
- nocturnal emission — the release of semen during sleep, often during a sexual dream.
- non-circumstantial — of pertaining to, or derived from circumstances: a circumstantial result.
- nonstriated muscle — smooth muscle
- numerical analysis — the branch of mathematics dealing with methods for obtaining approximate numerical solutions of mathematical problems.
- numerical aperture — a measure of the resolving power of a microscope, equal to the index of refraction of the medium in which the object is placed multiplied by the sine of the angle made with the axis by the most oblique ray entering the instrument, the resolving power increasing as the product increases. Abbreviation: N.A.
- numerical identity — the relation that holds between two relata when they are the selfsame entity, that is, when the terms designating them have the same reference
- numerical taxonomy — classification of organisms by a comparison of large numbers of observable characteristics that are given equal value instead of being weighted according to possible evolutionary significance.
- oil of catechumens — holy oil used in baptism, the ordination of a cleric, the coronation of a sovereign, or in the consecration of a church.
- on automatic pilot — If you are on automatic pilot or on autopilot, you are acting without thinking about what you are doing, usually because you have done it many times before.
- pan american union — a former organization of American republics dedicated to furthering understanding and peace: replaced in 1970 by the secretariat of the Organization of American States.
- parachute regiment — an airborne regiment of an army
- parallel computing — parallel processing
- perceptual mapping — the use of a graph or map in the development of a new product, in which the proximity of consumers' images of the new product to those of an ideal product provide an indication of the new product's likely success
- pernicious anaemia — Pernicious anaemia is a very severe blood disease.
- play cat and mouse — Also called cat and rat. a children's game in which players in a circle keep a player from moving into or out of the circle and permit a second player to move into or out of the circle to escape the pursuing first player.
- plumber's merchant — a shop or business that sells things needed for the job of installing and repairing pipes, fixtures, etc, for water, drainage, and gas
- pneumatic conveyor — a tube through which powdered or granular material, such as cement, grain, etc is transported by a flow of air
- precious moonstone — moonstone (def 1).
- principal argument — the radian measure of the argument between −π and π of a complex number. Compare argument (def 8c).
- production company — an organization which produces, films, plays, television or radio programmes
- production manager — a supervisor of the budget, crew and other details in the production of a film or play
- public examination — an examination, such as a GCSE exam, that is set by a central examining board
- publicity campaign — an effort to convey information to the public
- publishing company — a firm which publishes books
- pulmonic airstream — a current of lung air set in motion by the respiratory muscles in the production of speech.
- put the mockers on — stop, thwart
- quantum efficiency — the number of electrons released by a photocell per photon of incident radiation of a given energy
- quantum statistics — the branch of statistical mechanics that incorporates quantum mechanics.
- quinacrine mustard — a nitrogen mustard derived from mepacrine and used as a stain for chromosomes
- radiocommunication — communication by means of radio waves
- reciprocating pump — A reciprocating pump is a pump which uses a backward and forward movement to move a fluid.
- recruitment agency — company that places job candidates
- redundancy payment — a sum of money given by an employer to an employee who has been made redundant: usually calculated on the basis of the employee's rate of pay and length of service
- remembrance sunday — the second Sunday in November, which is the Sunday closest to November 11, the anniversary of the armistice of 1918 that ended World War I, on which the dead of both World Wars are commemorated
- repayment schedule — a document detailing the specific terms of a borrower's loan, such as monthly payment, interest rate, due dates etc
- resuscitation room — an intensive care unit
- roman architecture — buildings in style of ancient Rome
- room occupancy tax — Room occupancy tax is a tax that guests at a hotel have to pay in order to stay there.