18-letter words containing a, c, l, u, i

non-circumstantial — of pertaining to, or derived from circumstances: a circumstantial result.
non-contextualized — to put (a linguistic element, an action, etc.) in a context, especially one that is characteristic or appropriate, as for purposes of study.
nonstriated muscle — smooth muscle
nuclear capability — If a country has nuclear capability, it is able to produce nuclear power and usually nuclear weapons.
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.
nursery facilities — places where young children are looked after
objective modula-2 — (language) (Or "ObjM2") An extension to Modula-2 for Cocoa and GNUstep software development. Objective Modula-2 follows the Objective-C object model and retains the bracketed Smalltalk message passing syntax used in Objective-C. Classes written in ObjM2 can be used within ObjC and vice versa. ObjM2 also retains Modula-2's data encapsulation features, namely nested modules with explicit import and export lists. Due to the strict type checking in Modula-2, ObjM2 can be considered a much safer programming language than is ObjC, yet losing none of the capabilities of ObjC.
occupational group — An occupational group is a category used by insurance companies to classify jobs according to how hazardous they are.
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
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.
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.
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.
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.
particular average — a loss at sea, as through accident or negligence, that is borne solely by the owner of the lost property. Abbreviation: P.A.
particulate filter — A particulate filter is a filter to remove particles that are present the air, for example in the exhaust of a diesel engine.
particulate matter — Particulate matter is solid or liquid particles in the air, which are measured in PM-10 units and are particles with a diameter of ten micrometers or less.
passive vocabulary — all the words, collectively, that a person can understand
pennsylvania dutch — the descendants of 17th- and 18th-century settlers in Pennsylvania from southwest Germany and Switzerland.
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
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
personal insurance — insurance on personal risk, such as car insurance, health insurance or loss of earnings insurance
physical education — systematic instruction in sports, exercises, and hygiene given as part of a school or college program.
pig-tailed macaque — a forest-dwelling southeast Asian macaque, Macaca nemestrina, having a short, curled tail, colonized for animal behavior studies.
pleasure principle — an automatic mental drive or instinct seeking to avoid pain and to obtain pleasure.
plenary indulgence — a remission of the total temporal punishment that is still due to sin after absolution. Compare indulgence (def 6).
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
portal circulation — blood flow in a portal system.
potassium chlorate — a white or colorless, crystalline, water-soluble, poisonous solid, KClO 3 , used chiefly as an oxidizing agent in the manufacture of explosives, fireworks, matches, bleaches, and disinfectants.
potassium chloride — a white or colorless, crystalline, water-soluble solid, KCl, used chiefly in the manufacture of fertilizers and mineral water, and as a source of other potassium compounds.
predicate calculus — predicate logic
principal argument — the radian measure of the argument between −π and π of a complex number. Compare argument (def 8c).
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.
provably difficult — The set or property of problems for which it can be proven that no polynomial-time algorithm exists, only exponential-time algorithms.
provascular tissue — procambium.
provincial council — (formerly) a council administering any of the New Zealand provinces
pseudo-socialistic — of or relating to socialists or socialism.
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

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