15-letter words containing r, e, a, i, s
- molecular sieve — a compound with molecule-size pores, as some sodium aluminum silicates, that chemically locks molecules in them: used in purification and separation processes.
- monosaccharides — Plural form of monosaccharide.
- montes riphaeus — a mountain range in the third quadrant of the visible face of the moon.
- morale-boosting — A morale-boosting action or event makes people feel more confident and cheerful.
- morning prayers — early-morning act of religious worship
- motor insurance — insurance for a motor vehicle such as a car, which provides protection against loss in the event of an accident, theft, etc
- mountain rescue — search and rescue conducted on a mountain, for example of someone who has fallen, got lost, etc
- mules operation — the surgical removal of folds of skin in the breech of a sheep to reduce blowfly strike
- multiflora rose — a climbing or trailing rose, Rosa multiflora, of Japan and Korea, having hooked prickles and fragrant, dense clusters of flowers.
- multilateralism — having several or many sides; many-sided.
- multilateralist — Supporting or advocating multilateralism.
- multiliteracies — Plural form of multiliteracy.
- multiple master — (text, tool, software) (Or "Multiple Master Font") A font that is a mixture of two or more other fonts. A Multiple Master font is a single font containing from two to sixteen master designs (the current implementation limit). A weight factor specifies the contribution of each master design for the creation of a multiple master font instance. A Multiple Master instance is a single interpolation of a multiple master font as created by a user or application.
- muslim calendar — the lunar calendar used by Muslims and reckoned from a.d. 622: the calendar year consists of 354 days and contains 12 months: Moharram, Safar, Rabi I, Rabi II, Jumada I, Jumada II, Rajab, Shaban, Ramadan, Shawwal, Dhu ʾl-Qaʿda, and Dhu ʾl-hijjah. In leap years the month Dhu ʾl-hijjah contains one extra day.
- naismith's rule — a rule of thumb for calculating the time needed for a climbing expedition, allowing 1 hour for every 3 miles of distance plus 1 hour for every 2000 feet of height
- name resolution — (networking) The process of mapping a name into its corresponding address. The Domain Name System is the system which does name resolution on the Internet.
- nanocrystalline — Of, pertaining to, or composed of nanocrystals.
- napier-hastings — a seaport on E North Island, in New Zealand.
- 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.
- natural english — Programming in normal, spoken English. [Sammet 1969, p.768].
- natural justice — accepted moral principles
- natural realism — naive realism.
- natural science — a science or knowledge of objects or processes observable in nature, as biology or physics, as distinguished from the abstract or theoretical sciences, as mathematics or philosophy.
- natural virtues — (especially among the scholastics) any moral virtue of which humankind is capable, especially the cardinal virtues: justice, temperance, prudence, and fortitude.
- near as damn it — Some people say as near as damn it or as near as dammit to emphasize that what they have said is almost completely accurate, but not quite.
- nearsightedness — seeing distinctly at a short distance only; myopic.
- 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.
- neutral density — black, white, or a shade of grey; a colourless tone
- neutral spirits — nonflavored alcohol of 95 percent, or 190 proof, obtained chiefly from grain or molasses or redistilled from brandy, rum, etc., used for blending with straight whiskies and in the making of gin, cordials, liqueurs, and the like.
- new hampshirite — of New Hampshire
- nicholas ridley — Nicholas, c1500–55, English bishop, reformer, and martyr.
- nil desperandum — never despair
- 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.