17-letter words containing a, u, n, i
- neuropsychiatrist — A medical doctor specializing in neuropsychiatry; a medical doctor dealing with disorders that have both neurological and psychiatric features.
- neurotransmission — the transmission of a nerve impulse across a synapse.
- neurotransmissive — Relating to neurotransmission.
- neurotransmitters — Plural form of neurotransmitter.
- new guinea pidgin — the variety of Neo-Melanesian spoken in Papua New Guinea and neighbouring islands
- newfoundland time — a form of civil time observed on the island of Newfoundland, one and one-half hours later than Eastern time and a half hour later than Atlantic time.
- newspaper cutting — clipping from a news publication
- ngaliema mountain — Mount, a mountain with two summits, in central Africa, between Uganda and the Democratic Republic of the Congo: highest peak in the Ruwenzori group. 16,790 feet (5119 meters).
- nicholas bourbaki — the pseudonym of a group of mainly French mathematicians that, since 1939, has been producing a monumental work on advanced mathematics, Eléments de Mathématique
- nikita khrushchev — Nikita S(ergeyevich) [ni-kee-tuh sur-gey-uh-vich;; Russian nyi-kyee-tuh syir-gye-yuh-vyich] /nɪˈki tə sɜrˈgeɪ ə vɪtʃ;; Russian nyɪˈkyi tə syɪrˈgyɛ yə vyɪtʃ/ (Show IPA), 1894–1971, Russian political leader: premier of the U.S.S.R. 1958–64.
- nikolaus von cusa — Nicholas (def 1).
- non-argumentative — fond of or given to argument and dispute; disputatious; contentious: The law students were an unusually argumentative group.
- non-authoritarian — favoring complete obedience or subjection to authority as opposed to individual freedom: authoritarian principles; authoritarian attitudes.
- non-authoritative — having due authority; having the sanction or weight of authority: an authoritative opinion.
- non-communication — the act or process of communicating; fact of being communicated.
- non-communicative — inclined to communicate or impart; talkative: He isn't feeling very communicative today.
- non-institutional — of, relating to, or established by institution.
- non-instructional — the act or practice of instructing or teaching; education.
- non-subordination — the act of placing in a lower rank or position: The refusal to allow women to be educated was part of society's subordination of women to men.
- nonconstitutional — of or relating to the constitution of a state, organization, etc.
- norwegian current — an ocean current formed from the terminus of the North Atlantic Current, flowing N along the Norwegian coast into the Barents Sea.
- nuclear chemistry — the branch of chemistry concerned with nuclear reactions
- nuclear isomerism — isomerism (def 2).
- nuclear radiation — Physics. radiation in the form of elementary particles emitted by an atomic nucleus, as alpha rays or gamma rays, produced by decay of radioactive substances or by nuclear fission.
- nuclear scientist — a scientist who studies nuclear physics
- nuclear submarine — undersea vessel powered by atomic energy
- nuclear-isomerism — Chemistry. the relation of two or more compounds, radicals, or ions that are composed of the same kinds and numbers of atoms but differ from each other in structural arrangement (structural isomerism) as CH 3 OCH 3 and CH 3 CH 2 OH, or in the arrangement of their atoms in space and therefore in one or more properties. Compare optical isomerism, stereoisomerism.
- numbering machine — a handheld device for stamping numbers onto objects
- numerical control — control of a machine tool, or other device used in a manufacturing process, by a computer, other control circuitry, or recorded digital commands.
- nursery education — education provided at a school for young children, usually from three to five years old
- nursing auxiliary — someone who performs duties such as washing and dressing patients, making beds, etc, in an establishment such as a hospital
- odds-on favourite — a person, team, horse, etc that is regarded as the most likely to win a competition
- odour of sanctity — sanctimoniousness
- office automation — a method or system of using automated or electronic equipment, as word processors and computers, in the operations of an office.
- old south arabian — a group of four closely related Semitic languages, having a writing system and used from about the eighth to the fifth centuries b.c. in the southern part of Arabia.
- olympic mountains — a mountain range in NW Washington: part of the Coast Range. Highest peak: Mount Olympus, 2427 m (7965 ft)
- olympic peninsula — a large peninsula of W Washington
- on the foundation — an endowment or legacy for the perpetual support of an institution such as a school or hospital
- opening arguments — the statements or arguments provided by lawyers at the beginning of a trial
- opportunistically — adhering to a policy of opportunism; practicing opportunism.
- optical computing — (hardware) (Or "Optical Signal Processing") Operating on data represented using electromagnetic radiation, e.g. visible light, instead of the electrical signals used in a conventional electronic digital computer. Electronic digital computers are built from transistors. These form components that store data and logic gates that perform the low-level Boolean operations such as AND, OR and NOT that are the basis of all digital computation. The optical equivalent requires material with a non-linear refractive index such that light beams can interact with each other to perform the same Boolean operations. Though the photons that carry optical signals offer some theoretical advantages over the electrons that carry electronic signals, there are many practical problems that would have to be overcome before optical computing could compete in terms of cost, power and speed.
- organ-pipe cactus — a treelike or columnar cactus, Lemaireocereus marginatus, of Mexico, having a central, erect spine surrounded by spreading spines in clusters of five to eight, and funnel-shaped, brownish-purple flowers.
- osculating circle — circle of curvature.
- outline agreement — a contract, etc, setting out the preliminary terms or guidelines for an agreement; a preliminary agreement
- oversquare engine — An oversquare engine is an engine which has a cylinder bore that is larger than its stroke.
- palace revolution — a challenge to or overthrow of a sovereign or other leader by members of the ruling family or group.
- papanicolaou test — Pap test.
- papua new guinean — a native or inhabitant of Papua New Guinea.
- papua-new-guinean — an inhabitant or native of Papua New Guinea
- parallel universe — Physics. any of a hypothetical collection of undetectable universes that are like our known universe but have branched off from our universe due to a quantum-level event. See also multiverse.