19-letter words containing r, i, s

moving spirit/force — The moving spirit or moving force behind something is the person or thing that caused it to start and to keep going, or that influenced people to take part in it.
mucopolysaccharides — Plural form of mucopolysaccharide.
multiple-entry visa — a visa that permits the holder to enter a country several times
mushroom ventilator — a ventilator having at the top of a vertical shaft a broad rounded cap that can be screwed down to close it.
music to one's ears — something that is very pleasant to hear
muster in (or out) — to enlist in (or discharge from) military service
mutual masturbation — the act of two or more people masturbating each other
nail polish remover — solvent for removing nail polish
narcotics anonymous — an organization that helps drug users recover from drug addiction
nasty piece of work — malicious person
national characters — (character) Characters with accents and other diacritical marks that are used in certain written languages (that are based on the Roman alphabet) but not in others, particularly not in English. A standard list is ISO Latin 1.
national serviceman — a soldier undertaking compulsory military service
neats vs. scruffies — (artificial intelligence, jargon) The label used to refer to one of the continuing holy wars in artificial intelligence research. This conflict tangles together two separate issues. One is the relationship between human reasoning and AI; "neats" tend to try to build systems that "reason" in some way identifiably similar to the way humans report themselves as doing, while "scruffies" profess not to care whether an algorithm resembles human reasoning in the least as long as it works. More importantly, neats tend to believe that logic is king, while scruffies favour looser, more ad-hoc methods driven by empirical knowledge. To a neat, scruffy methods appear promiscuous, successful only by accident and not productive of insights about how intelligence actually works; to a scruffy, neat methods appear to be hung up on formalism and irrelevant to the hard-to-capture "common sense" of living intelligences.
necessary condition — prerequisite
negative resistance — a characteristic of certain electronic components in which an increase in the applied voltage increases the resistance, producing a proportional decrease in current
network file system — (networking, operating system) (NFS) A protocol developed by Sun Microsystems, and defined in RFC 1094, which allows a computer to access files over a network as if they were on its local disks. This protocol has been incorporated in products by more than two hundred companies, and is now a de facto standard. NFS is implemented using a connectionless protocol (UDP) in order to make it stateless. See Nightmare File System, WebNFS.
neuropsychodynamics — The theoretical synthesis of neuroscience and psychodynamics.
neurotransmissional — Relating to neurotransmission.
new year resolution — a promise to yourself or decision to do something, especially to improve one's behaviour or lifestyle in some way, during the year ahead
new york university — (NYU) Established in 1831, New York University today includes thirteen schools, colleges and divisions located in New York City's borough of Manhattan, as well as research centers and programs in the surrounding suburbs and abroad.
nicolaus copernicus — Nicolaus [nik-uh-ley-uh s] /ˌnɪk əˈleɪ əs/ (Show IPA), (Mikolaj Kopernik) 1473–1543, Polish astronomer who promulgated the now accepted theory that the earth and the other planets move around the sun (the Copernican System)
nine plus two array — the arrangement of microtubules in a flagellum or cilium, consisting of a ring of nine evenly spaced couplets surrounding two central singlets. Symbol: 9 + 2.
nine--days---wonder — an event or thing that arouses considerable but short-lived interest or excitement.
no shrinking violet — If you say that someone is no shrinking violet, you mean that they are not at all shy.
no strings attached — without conditions
non-interventionism — abstention by a nation from interference in the affairs of other nations or in those of its own political subdivisions.
non-standardization — to bring to or make of an established standard size, weight, quality, strength, or the like: to standardize manufactured parts.
non-transferability — to convey or remove from one place, person, etc., to another: He transferred the package from one hand to the other.
nonrepresentational — not resembling or portraying any object in physical nature: a nonrepresentational painting.
nordrhein-westfalen — German name of North Rhine-Westphalia.
norfolk island pine — a coniferous evergreen tree, Araucaria heterophylla (or A. excelsa), having whorled branches and needlelike foliage, widely cultivated as a houseplant.
normal distribution — a theoretical frequency distribution represented by a normal curve.
north-west frontier — the area roughly equivalent to the present North-West Frontier Province of Pakistan, which is the days of the British Raj was regarded as one of the most remote and dangerous outposts of the British Empire
northern hemisphere — the half of the earth between the North Pole and the equator.
northwest ordinance — the act of Congress in 1787 providing for the government of the Northwest Territory and setting forth the steps by which its subdivisions might become states.
northwest territory — region north of the Ohio River, between Pa. & the Mississippi (established 1787): it now forms Ohio, Ind., Ill., Mich., Wis., & part of Minn.
nothing of the sort — not at all as described
notre-dame-de-paris — Also called Notre Dame de Paris [French naw-truh dam duh pa-ree] /French nɔ trə dam də paˈri/ (Show IPA). a famous early gothic cathedral in Paris (started 1163).
nuclear disarmament — the gradual reduction and eventual elimination of all nuclear weapons in the world
nuits-saint-georges — a fine red wine produced near the town of Nuits-Saint-Georges in Burgundy
object-oriented sql — (language) (OSQL) A functional language, a superset of SQL, used in Hewlett-Packard's OpenODB database system.
observation balloon — a balloon that is used for gathering information and reconnaissance purposes and spotting aircraft
oil-catalyst slurry — Oil-catalyst slurry is a heavy aromatic by-product of a refinery's fluid catalytic cracking unit, that forms a small part of global fuel oil supply.
old church slavonic — the oldest attested Slavic language, an ecclesiastical language written first by Cyril and Methodius in a Bible translation of the 9th century and continued in use for about two centuries. It represents the South Slavic, Bulgarian dialect of 9th-century Salonika with considerable addition of other South and West Slavic elements. Abbreviation: OCS.
old english pattern — a spoon pattern having a stem curving backward at the end.
olive-backed thrush — Swainson's thrush.
on first name terms — If two people are on first-name terms, they know each other well enough to call each other by their first names, rather than having to use a more formal title.
on no consideration — for no reason whatsoever; never
on one's high horse — acting in an arrogant, haughty, or disdainful manner
on the baker's list — in good health

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