15-letter words containing a, e, r, o, s, i
- nanocrystalline — Of, pertaining to, or composed of nanocrystals.
- napoleonic wars — French-led war in early 19th century
- narcotics agent — an undercover agent who provides information to the police about illegal drugs, illegal drug trafficking, and users of illegal drugs
- national forest — forested land owned, maintained, and preserved by the U.S. government.
- necrobacillosis — any disease of cattle, horses, sheep, and swine marked by necrotic areas in which a bacillus, Fusobacterium necrophorum, is found.
- negro spiritual — a type of religious song originating among Black slaves in the American South
- neighbor states — the states or countries next to another state or country
- neo-lutheranism — a movement begun in the 19th century in Germany and Scandinavia to revive the orthodox principles, beliefs, and practices of the Lutheran Church.
- neoarsphenamine — a derivative of arsenic formerly used in treating syphilis
- neoconservatism — moderate political conservatism espoused or advocated by former liberals or socialists.
- neoconservative — moderate political conservatism espoused or advocated by former liberals or socialists.
- neomercantilism — an economic doctrine or policy during the early 20th century that set high tariffs and other import restrictions in order to protect domestic industries.
- nephrolithiasis — (pathology) presence of calculi in kidneys.
- net.personality — Someone who has made a name for him or herself on Usenet, through either longevity or attention-getting posts, but doesn't meet the other requirements of net.godhood.
- neurodermatitis — W Lichen simplex chronicus, a skin disorder characterized by chronic itching and scratching, resulting in thick, leathery, brownish skin.
- neuroplasticity — the capacity of the nervous system to develop new neuronal connections: research on neuroplasticity of the brain after injury.
- neuropsychiatry — the branch of medicine dealing with diseases involving the mind and nervous system.
- nicholas ridley — Nicholas, c1500–55, English bishop, reformer, and martyr.
- noise generator — a device used in synthesizers to produce high-frequency sound effects
- non-adversarial — a person, group, or force that opposes or attacks; opponent; enemy; foe.
- non-contrastive — not contrastive.
- non-crystalline — of or like crystal; clear; transparent.
- non-ministerial — pertaining to the ministry of religion, or to a minister or other member of the clergy.
- non-residential — of or relating to residence or to residences: a residential requirement for a doctorate.
- non-suppurative — suppurating; characterized by suppuration.
- nonconservation — A failure to conserve.
- nonconservative — Not conservative.
- nondiscriminate — Not discriminate.
- noninstrumental — serving or acting as an instrument or means; useful; helpful.
- nonprofessional — not a member of or trained in a specific profession.
- nonprofessorial — not professorial
- nonrelativistic — not concerned with or involving the theory of relativity
- nonstandardized — Unstandardized.
- not necessarily — If you reply 'Not necessarily', you mean that what has just been said or suggested may not be true.
- nottinghamshire — a county in central England. 854 sq. mi. (2210 sq. km).
- nuclear fission — fission (def 2).
- nuisance ground — a garbage dump.
- observation car — a railroad passenger car having a lounge or platform from which the scenery can be viewed.
- observationally — of, relating to, or founded on observation, especially founded on observation rather than experiment.
- obtuse triangle — a triangle with one obtuse angle.
- officer of arms — an officer with the duties of a herald, especially one charged with the devising, granting, or confirming of armorial bearings.
- official strike — a collective stoppage of work by part or all of the workforce of an organization with the approval of the trade union concerned. The stoppage may be accompanied by the payment of strike pay by the trade union concerned
- oligomerisation — Alternative spelling of oligomerization.
- oligosaccharide — any carbohydrate yielding few monosaccharides on hydrolysis, as two, three, or four.
- on a shoestring — If you do something or make something on a shoestring, you do it using very little money.
- on the increase — growing, increasing
- operationalised — Simple past tense and past participle of operationalise.
- operations room — a room from which all the operations of a military, police, or other disciplined activity are controlled
- optical scanner — the process of interpreting data in printed, handwritten, bar-code, or other visual form by a device (optical scanner or reader) that scans and identifies the data.
- optical storage — optical disk drive