16-letter words containing s, o, n

occasional table — a small table with no regular use
odds are against — If you say that the odds are against something or someone, you mean that they are unlikely to succeed.
oder-neisse line — the boundary between Poland and East Germany after World War II.
odontoid process — the toothlike upward projection at the back of the second vertebra of the neck
off one's rocker — Also called runner. one of the curved pieces on which a cradle or a rocking chair rocks.
off one's stroke — performing or working less well than usual
offensive weapon — an instrument designed to be used in attack, or an object which may be used in attack
ohm, georg simon — Georg Simon Ohm
ohmic resistance — resistance (def 3a).
oil installation — a facility or place where petroleum is extracted for industrial purposes
oil storage tank — a very large industrial container where petroleum is stored
okefenokee swamp — a large wooded swamp area in SE Georgia.
oligonucleotides — Plural form of oligonucleotide.
on a trial basis — for the purpose of assessment
on a world scale — in a way that involves the whole world
on her beam-ends — (of a vessel) heeled over through an angle of 90°
on its last legs — about to fail
on the beam-ends — tipping so far to the side as to be in danger of capsizing
on the defensive — If someone is on the defensive, they are trying to protect themselves or their interests because they feel unsure or threatened.
on the safe side — as a precaution
on the same page — one side of a leaf of something printed or written, as a book, manuscript, or letter.
on the scrapheap — (of people or things) having outlived their usefulness
on the sidelines — in the area along the sidelines
on the stroke of — punctually at
on your doorstep — If a place is on your doorstep, it is very near to where you live. If something happens on your doorstep, it happens very close to where you live.
on-the-spot fine — a fine that is charged immediately upon being caught and found guilty of a crime
one and the same — When two or more people or things are thought to be separate and you say that they are one and the same, you mean that they are in fact one single person or thing.
one's cup of tea — the dried and prepared leaves of a shrub, Camellia sinensis, from which a somewhat bitter, aromatic beverage is prepared by infusion in hot water.
one's level best — the best one can do
one's salad days — If you refer to your salad days, you are referring to a period of your life when you were young and inexperienced.
one-party system — a political system in which only one party is allowed
one/a false move — If you say that one false move will cause a disaster, you mean that you or someone else must not make any mistakes because the situation is so difficult or dangerous.
online thesaurus — a thesaurus or dictionary of words with the same or nearly the same meanings, or synonyms, and their opposites, or antonyms, such as Thesaurus.com, available on the Internet or the World Wide Web, accessed through a web browser, and used by entering a query term into a search box on the site. An online thesaurus provides immediate electronic access to lists of alternate terms for the queried word, covering its various shades of meaning: This online thesaurus showed me that smart, as an adjective, not only means intelligent, but also stylish, or lively, and gave long lists of other words for each meaning.
open box testing — white box testing
open parenthesis — left parenthesis
open scholarship — a scholarship which anyone can apply for
operating system — (operating system) (OS) The low-level software which handles the interface to peripheral hardware, schedules tasks, allocates storage, and presents a default interface to the user when no application program is running. The OS may be split into a kernel which is always present and various system programs which use facilities provided by the kernel to perform higher-level house-keeping tasks, often acting as servers in a client-server relationship. Some would include a graphical user interface and window system as part of the OS, others would not. The operating system loader, BIOS, or other firmware required at boot time or when installing the operating system would generally not be considered part of the operating system, though this distinction is unclear in the case of a rommable operating system such as RISC OS. The facilities an operating system provides and its general design philosophy exert an extremely strong influence on programming style and on the technical cultures that grow up around the machines on which it runs. Example operating systems include 386BSD, AIX, AOS, Amoeba, Angel, Artemis microkernel, BeOS, Brazil, COS, CP/M, CTSS, Chorus, DACNOS, DOSEXEC 2, GCOS, GEORGE 3, GEOS, ITS, KAOS, Linux, LynxOS, MPV, MS-DOS, MVS, Mach, Macintosh operating system, Microsoft Windows, MINIX, Multics, Multipop-68, Novell NetWare, OS-9, OS/2, Pick, Plan 9, QNX, RISC OS, STING, System V, System/360, TOPS-10, TOPS-20, TRUSIX, TWENEX, TYMCOM-X, Thoth, Unix, VM/CMS, VMS, VRTX, VSTa, VxWorks, WAITS.
operating-system — the collection of software that directs a computer's operations, controlling and scheduling the execution of other programs, and managing storage, input/output, and communication resources. Abbreviation: OS.
opportunity cost — the money or other benefits lost when pursuing a particular course of action instead of a mutually-exclusive alternative: The company cannot afford the opportunity cost attached to policy decisions made by the current CEO.
opportunity shop — a shop selling second-hand goods for charitable funds
opposed-cylinder — (of an internal-combustion engine) having cylinders on opposite sides of the crankcase in the same plane
optical illusion — something that deceives by producing a false or misleading impression of reality.
optical scanning — the process of interpreting data in printed, handwritten, bar-code, or other visual form by a device (optical scanner or reader) that scans and identifies the data.
orange men's day — July 12, an annual celebration in Northern Ireland and certain cities having a large Irish section, especially Liverpool, to mark both the victory of William III over James II at the Battle of the Boyne, July 1, 1690, and the Battle of Augbrim, July 12, 1690.
organ transplant — an operation in which an organ is transplanted from a donor
organophosphates — Plural form of organophosphate.
organophosphorus — Denoting synthetic organic compounds containing phosphorus, especially pesticides and nerve gases of this kind.
orthodoxy sunday — a solemn festival held on the first Sunday of Lent (Orthodoxy Sunday) commemorating the restoration of the use of icons in the church (a.d. 842) and the triumph over all heresies.
osculating plane — the plane containing the circle of curvature of a point on a given curve.
ostend manifesto — a declaration (1854) issued from Ostend, Belgium, by the U.S. ministers to England, France, and Spain, stating that the U.S. would be justified in seizing Cuba if Spain did not sell it to the U.S.

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