19-letter words containing a, s, t, n

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
nernst heat theorem — the principle that reactions in crystalline solids involve changes in entropy that tend to zero as the temperature approaches absolute zero
neufchâtel (cheese) — a soft white cheese prepared from whole milk or skim milk and eaten fresh or cured
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
newcastle upon tyne — 1st Duke of, Pelham-Holles, Thomas.
newtonian mechanics — the branch of mechanics that is based on Newton's laws of motion and that is applicable to systems that are so large that Planck's constant can be regarded as negligibly small (distinguished from quantum mechanics).
newtonian telescope — a reflecting telescope in which a mirror or reflecting prism is mounted on the axis near the eyepiece so that the image may be viewed from outside the telescope tube at right angles to the axis.
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 strings attached — without conditions
nominative absolute — a construction consisting in English of a noun, noun phrase, or pronoun in the nominative case followed by a predicate lacking a finite verb, used as a loose modifier of the whole sentence, as the play done in The play done, the audience left the theater.
non-contemporaneous — living or occurring during the same period of time; contemporary.
non-distinguishable — to mark off as different (often followed by from or by): He was distinguished from the other boys by his height.
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.
normal distribution — a theoretical frequency distribution represented by a normal curve.
north valley stream — a town on W Long Island, in SE New York.
north-central state — a state of N Nigeria. Capital: Kaduna. Pop: 4 438 007 (1995 est). Area: 46 053 sq km (17 781 sq miles)
north-northeasterly — a wind or storm coming from the north-northeast
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.
not by a long sight — on no account; not at all
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).
noughts and crosses — tick-tack-toe (def 1).
noughts-and-crosses — tick-tack-toe (def 1).
novell data systems — (company) A small computer hardware company building CP/M Z80-based systems. They later went on to become Novell, Inc. and develop Novell Netware.
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
observation balloon — a balloon that is used for gathering information and reconnaissance purposes and spotting aircraft
old english pattern — a spoon pattern having a stem curving backward at the end.
old man and the sea — a novel (1952) by Ernest Hemingway.
old spanish customs — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
on an empty stomach — If you do something on an empty stomach, you do it without having eaten.
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 the baker's list — in good health
on the razor's edge — a sharp-edged instrument used especially for shaving the face or trimming the hair.
open the floodgates — If events open the floodgates to something, they make it possible for that thing to happen much more often or much more seriously than before.
open-hearth process — a process of steelmaking in which the charge is laid in a furnace (open-hearth furnace) on a shallow hearth and heated directly by burning gas as well as radiatively by the furnace walls.
operational testing — (testing) A US DoD term for testing performed by the end-user on software in its normal operating environment.
operations director — a director or senior manager who oversees the efficiency of business operations
operations research — the analysis, usually involving mathematical treatment, of a process, problem, or operation to determine its purpose and effectiveness and to gain maximum efficiency.
orthopaedic surgeon — a surgeon specializing in the branch of surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
oscillating circuit — a circuit producing electrical oscillations.
outstation movement — the programme to resettle native Australians on their tribal lands
over-sentimentality — the quality or state of being sentimental or excessively sentimental.
palaeoethnobotanist — someone who studies fossil seeds and grains to further archaeological knowledge, esp of the domestication of cereals
paleoanthropologist — the study of the origins and predecessors of the present human species, using fossils and other remains.

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