18-letter words containing a, l, u

naval architecture — the science of designing ships and other waterborne craft.
nebular hypothesis — the theory that the solar system evolved from a mass of nebular matter: prominent in the 19th century following its precise formulation by Laplace.
neovascularization — the development of new blood vessels, especially in tissues where circulation has been impaired by trauma or disease.
netherlands guiana — a former name of Suriname.
neural tube defect — any of a group of congenital abnormalities involving the brain and spinal cord, including spina bifida and meningocele, caused by failure of the neural tube to close properly during embryonic development.
neurodevelopmental — Of or pertaining to the development of neurological pathways in the brain.
neuroleptanalgesia — a semiconscious nonreactive state induced by certain drug combinations, as fentanyl with droperidol.
neuroophthalmology — the branch of ophthalmology that deals with the optic nerve and other nervous system structures involved in vision.
neurophysiological — the branch of physiology dealing with the functions of the nervous system.
neuropsychological — Of or pertaining to neuropsychology, the relation or combination of brain and mind.
new orleans lugger — a half-decked fishing boat, formerly used on the Gulf of Mexico near New Orleans, having a rather broad hull with centerboard and a single mast with a large dipping lugsail.
no laughing matter — sth serious
no-fault insurance — Also called no-fault insurance. a form of automobile insurance designed to enable the policyholder in case of an accident to collect a certain basic compensation promptly for economic loss from his or her own insurance company without determination of liability.
nocturnal emission — the release of semen during sleep, often during a sexual dream.
non-accountability — the state of being accountable, liable, or answerable.
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.
non-fundamentalist — (sometimes initial capital letter) a religious movement characterized by a strict belief in the literal interpretation of religious texts, especially within American Protestantism and Islam.
non-understandable — capable of being understood; comprehensible.
nonpartisan league — a political organization of farmers, founded in North Dakota in 1915, and extending to many states west of the Mississippi, with the aim of influencing agricultural legislation in state legislatures.
nonstriated muscle — smooth muscle
north attleborough — a city in SE Massachusetts.
norwegian elkhound — one of a breed of dogs having a short, compact body, short, pointed ears, and a thick, gray coat, raised originally in Norway for hunting elk and other game.
not to have a clue — to be completely baffled
now you're talking — at last you're saying something agreeable
nuclear capability — If a country has nuclear capability, it is able to produce nuclear power and usually nuclear weapons.
nueva san salvador — Santa Tecla.
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.
oblique-slip fault — a fault on which the movement is along both the strike and the dip of the fault
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.
optimum population — a population that is sufficiently large to provide an adequate workforce with minimal unemployment
order of australia — an order awarded to Australians for outstanding achievement or for service to Australia or to humanity at large; established in 1975
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 evolution — the independent development of closely corresponding adaptive features in two or more groups of organisms that occupy different but equivalent habitats, as marsupial mammals in Australia and placental mammals on other continents.
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.
parallelogram rule — a rule for finding the resultant of two vectors by constructing a parallelogram with two adjacent sides representing the magnitudes and directions of the vectors, the diagonal through the point of intersection of the vectors representing their resultant
paraurethral gland — any of a group of vestigial glands located in the posterior wall of the urethra in women.

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