19-letter words containing e, t, r, n
- mount desert island — an island off the coast of E central Maine: summer resort; forms part of Acadia National Park. 14 miles (23 km) long; 8 miles (13 km) wide.
- 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.
- mud object oriented — (games) (MOO) One of the many MUD spin-offs (e.g. MUSH, MUSE, and MUX) created to diversify the realm of interactive text-based gaming. A MOO is similar to a MUSH in that the users themselves can create objects, rooms, and code to add to the environment. The most frequently used server software for running a MOO is LambdaMOO but alternatives include WinMOO and MacGoesMOO.
- multinomial theorem — an expression of a power of a sum in terms of powers of the addends, a generalization of the binomial theorem.
- multiple-entry visa — a visa that permits the holder to enter a country several times
- multiplexor channel — (MPX) mainframe terminology for a slow peripheral device connection, e.g. for a printer, operator console, or card reader.
- 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
- napierian logarithm — natural logarithm.
- nasty piece of work — malicious person
- nathaniel hawthorne — Nathaniel, 1804–64, U.S. novelist and short-story writer.
- 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 government — A national government is a government with members from more than one political party, especially one that is formed during a crisis.
- national serviceman — a soldier undertaking compulsory military service
- natural catastrophe — A natural catastrophe is an unexpected event, caused by nature, such as an earthquake or flood, in which there is a lot of suffering, damage, or death.
- natural killer cell — a small killer cell that destroys virus-infected cells or tumor cells without activation by an immune system cell or antibody.
- near letter quality — a quality of print that is not quite letter quality, but is better than draft quality
- near to one's heart — cherished or important
- nearest and dearest — People sometimes refer to their close relatives and friends as their nearest and dearest.
- 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
- negation by failure — An extralogical feature of Prolog and other logic programming languages in which failure of unification is treated as establishing the negation of a relation. For example, if Ronald Reagan is not in our database and we asked if he was an American, Prolog would answer "no".
- 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
- neighbourhood watch — a scheme under which members of a community agree together to take responsibility for keeping an eye on each other's property, as a way of preventing crime
- nernst heat theorem — the principle that reactions in crystalline solids involve changes in entropy that tend to zero as the temperature approaches absolute zero
- nerve growth factor — a protein that promotes the growth, organization, and maintenance of sympathetic and some sensory nerve cells. Abbreviation: NGF.
- 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.
- network termination — (NT, NT1) A device connecting the customer's data or telephone equipment to the local ISDN exchange carrier's line. The NT device provides a connection for terminal equipment (TE) and terminal adaptor (TA) equipment to the local loop.
- neuropathologically — In a neuropathologic way.
- neurotransmissional — Relating to neurotransmission.
- new general catalog — a catalog of star clusters, galaxies, and other non-stellar objects, published in 1888
- 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.
- next door neighbour — a person who lives in the house, flat, etc, next to one's home
- niagara-on-the-lake — a town in SE Ontario, in S Canada, on Lake Ontario, at the mouth of the Niagara River, on the border between Canada and New York.
- 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.
- 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
- no-write allocation — (memory management) A cache policy where only processor reads are cached, thus avoiding the need for write-back or write-through.
- non-contemporaneous — living or occurring during the same period of time; contemporary.
- non-interventionism — abstention by a nation from interference in the affairs of other nations or in those of its own political subdivisions.
- non-transferability — to convey or remove from one place, person, etc., to another: He transferred the package from one hand to the other.
- non-volatile memory — non-volatile storage
- nonforfeiture value — any benefit, as cash or other form of insurance, available to a life-insurance policyholder who discontinues premium payments on the policy.
- nonmaterial culture — the aggregate of values, mores, norms, etc., of a society; the ideational structure of a culture that provides the values and meanings by which it functions.
- nonplayer character — a character in a tabletop role-playing game who is controlled by the Game Master.
- nonproprietary drug — A nonproprietary drug is a generic drug that is essentially similar to a drug with a brand name.
- nonrepresentational — not resembling or portraying any object in physical nature: a nonrepresentational painting.
- nonthrombocytopenic — Not thrombocytopenic.