18-letter words containing c, o, a, n, u

oedipus at colonus — a tragedy by Sophocles, written toward the end of his life and produced posthumously in 401? b.c.
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.
on delicate ground — in a situation requiring tact
on the back burner — low priority
optical soundtrack — the final soundtrack on a motion picture, which appears as a band of black and white serrations along a strip of film to the left of the composite print. Light is shined through the serrations and is converted to audible sound.
orientation course — induction into sth
orthotungstic acid — an oxyacid acid of tungsten. Formula: H2WO4
out of circulation — If someone is out of circulation, they do not appear in public or at social gatherings for a period of time. You can also say that someone is out of circulation when they are in prison.
over-pronunciation — to pronounce (a word, syllable, etc.) in an exaggerated, affected, or excessively careful manner.
oxalosuccinic acid — an organic acid, C 6 H 6 O 7 , that is an intermediate formed by the dehydrogenation of isocitric acid in fat and carbohydrate metabolism.
pacinian corpuscle — (sometimes lowercase) a microscopic, onionlike body consisting of layers of connective tissue wrapped around a nerve ending, located in the deep layers of skin, tendons, etc., and functioning as a sensory receptor of pressure and vibration.
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.
parallel computing — parallel processing
parallel reduction — A form of applicative order reduction in which all redexes in an expression are reduced simultaneously. Variants include parallel outermost reduction and lenient reduction. See normal order reduction.
percussion flaking — a method of forming a flint tool by striking flakes from a stone core with another stone or a piece of bone or wood.
perlocutionary act — the action of affecting someone by uttering certain words
pernicious anaemia — Pernicious anaemia is a very severe blood disease.
personal insurance — insurance on personal risk, such as car insurance, health insurance or loss of earnings insurance
phoenician juniper — a type of juniper that is found in the Mediterranean region
physical education — systematic instruction in sports, exercises, and hygiene given as part of a school or college program.
pitch-and-run shot — chip shot.
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.
pneumatic conveyor — a tube through which powdered or granular material, such as cement, grain, etc is transported by a flow of air
political question — a question regarded by the courts as being a matter to be determined by another department of government rather than of law and therefore one with which they will not deal, as the recognition of a foreign state.
population balance — A population balance is a model showing particle sizes during a grinding process, which is used when designing a process.
population control — a policy of attempting to limit the growth in numbers of a population, esp in poor or densely populated parts of the world, by programmes of contraception or sterilization
porcupine anteater — an echidna or spiny anteater.
portal circulation — blood flow in a portal system.
pour cold water on — If someone pours cold water on a plan or idea, they criticize it so much that people lose their enthusiasm for it.
procrustean string — (programming) A fixed-length string. If a string value is too long for the allocated space, it is truncated to fit; and if it is shorter, the empty space is padded, usually with space characters. This is an allusion to Procrustes, a legendary robber of ancient Attica. He bound his victims to a bed, and if they were shorter than the bed, he stretched their limbs until they would fit; if their limbs were longer, he lopped them off.
product acceptance — the verification or acceptance that a manufactured item meets required specifications or standards and is usable for its purpose
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
property insurance — insurance coverage for land and housing
protocol data unit — (PDU) A packet of data passed across a network. The term implies a specific layer of the OSI seven layer model and a specific protocol.
provincial council — (formerly) a council administering any of the New Zealand provinces
pseudo-anarchistic — a person who advocates or believes in anarchy or anarchism.
pseudoappendicitis — inflammation of the vermiform appendix.
pseudointellectual — a person exhibiting intellectual pretensions that have no basis in sound scholarship.
public corporation — a corporation, owned and operated by a government, established for the administration of certain public programs.
public examination — an examination, such as a GCSE exam, that is set by a central examining board
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.
purchasing officer — the member of staff in an organization who is responsible for buying goods or products
put a bold face on — to seem bold or confident about
quadratic equation — an equation containing a single variable of degree 2. Its general form is ax 2 + bx + c = 0, where x is the variable and a, b, and c are constants (a ≠ 0).
quality controller — a person responsible for checking that the goods or services produced by an organization are of an acceptable standard
quite the contrary — not at all, the very opposite
radiocommunication — communication by means of radio waves

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