19-letter words containing a, t, s

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
o tempora! o mores! — oh the times! oh the customs!: an exclamation at the evil of them
objectfuscated code — (humour, programming) Object-oriented code which has been abstracted to so many levels that no-one can understand it anymore. A play on obfuscated code.
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 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
olive-backed thrush — Swainson's thrush.
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.
optical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)
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
orthopaedic surgery — surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
oscillating circuit — a circuit producing electrical oscillations.
out at (the) elbows — shabby; poverty-stricken
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.
palomar observatory — an astronomical observatory situated on Palomar Mountain in S California, having a 200-inch (508-cm) reflecting telescope and a 48-inch (122-cm) Schmidt telescope.
pancreatic fibrosis — cystic fibrosis.
parachute spinnaker — a very large spinnaker used on a racing yacht.
parallactic ellipse — the apparent ellipse, as seen against the background of more distant stars, described annually by a nearby star because of the earth's orbital motion around the sun. Compare parallax (def 2).
parasympathomimetic — having an effect similar to that produced when the parasympathetic nervous system is stimulated
participatory sport — a sport in which people take part, (as opposed to a spectator sport)
particle dispersoid — A particle dispersoid is a suspension of solid particles in a gas.
particle kinematics — Particle kinematics is the study of the movement of particles, without considering the forces that cause this movement.
particle separation — a rule that moves the particle of a phrasal verb, thus deriving a sentence like He looked the answer up from a structure that also underlies He looked up the answer
particular solution — a solution of a differential equation containing no arbitrary constants.
parting of the ways — When there is a parting of the ways, two or more people or groups of people stop working together or travelling together.
paschen-back effect — a splitting of spectral lines observed when the source of a radiation is subjected to a strong magnetic field, caused when the vectors associated with the spin and orbital angular momentum exhibit individual rather than common precession.

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