15-letter words containing a, c, o
- nonphotographic — not involving photographic equipment or techniques
- nonprecedential — Not precedential.
- nonpsychiatrist — a person who is not a psychiatrist
- nonpsychoactive — Not psychoactive.
- nonrelativistic — not concerned with or involving the theory of relativity
- nonsensicalness — Nonsensicality.
- nonsolicitation — Being or pertaining to a particular kind of noncompetition agreement that forbids a former employee from attempting to recruit the employer's colleagues or customers.
- nonspecifically — in a nonspecific way
- normally-closed — Normally-closed switch contacts are in a closed state at rest.
- norman conquest — the conquest of England by the Normans, under William the Conqueror, in 1066.
- north caucasian — a language family including all the Caucasian languages north of the Caucasian divide, as Kabardian and the Circassian language proper, and a few between the divide and the Black Sea, as Abkhazian.
- north vancouver — a city in SW British Columbia, in SW Canada.
- northcountryman — a native or inhabitant of the North of England
- not a dickybird — not a word; nothing
- not care a fuck — not to care at all
- not in the race — given or having no chance
- not necessarily — If you reply 'Not necessarily', you mean that what has just been said or suggested may not be true.
- nova scotia lox — a kind of brine-cured salmon, having either a salt cure (Scandinavian lox) or a sugar cure (Nova Scotia lox) often eaten with cream cheese on a bagel.
- nuclear fission — fission (def 2).
- nuclear reactor — reactor (def 4).
- nuclear-powered — powered by nuclear energy
- nuisance ground — a garbage dump.
- obedience trial — a competitive event at which a dog can progress toward a degree in obedience by demonstrating its ability to follow a prescribed series of commands.
- obituary column — the division of a publication reserved for obituaries
- object database — a database format in which information is shown in the form of objects
- object distance — the distance between the lens of a camera and an object being photographed.
- object exchange — (protocol) (OBEX) A Bluetooth protocol in the Core Protocol Stack for data exchange.
- object language — the language to which a metalanguage refers.
- objectification — to present as an object, especially of sight, touch, or other physical sense; make objective; externalize.
- objectionable-c — (abuse, humour, language) A hackish take on "Objective C". Objectionable-C uses a Smalltalk-like syntax, but lacks the flexibility of Smalltalk method calls, and (like many such efforts) comes frustratingly close to attaining the Right Thing without actually doing so.
- observation car — a railroad passenger car having a lounge or platform from which the scenery can be viewed.
- obsidional coin — siege piece.
- obstacle course — a military training area having obstacles, as hurdles, ditches, and walls, that must be surmounted or crossed in succession.
- occipitomastoid — (anatomy) Relating to, or connecting the occipital and mastoid bones.
- ocean greyhound — a fast ship, esp a liner
- ocean of storms — the largest of the dark plains (maria) on the surface of the moon, situated in the second and third quadrant
- ochlocratically — In an ochlocratic way.
- octanitrocubane — (organic compound) A high explosive derived from cubane.
- of mice and men — a novel (1937) and play (1938) by John Steinbeck.
- officer of arms — an officer with the duties of a herald, especially one charged with the devising, granting, or confirming of armorial bearings.
- official family — the executives or officials chiefly responsible for the operation of an organization or government.
- official strike — a collective stoppage of work by part or all of the workforce of an organization with the approval of the trade union concerned. The stoppage may be accompanied by the payment of strike pay by the trade union concerned
- old clothes man — a person who deals in second-hand clothes
- olfactory nerve — either one of the first pair of cranial nerves, consisting of sensory fibers that conduct to the brain the impulses from the mucous membranes of the nose.
- olfactory tract — a long narrow triangular band of white tissue originating in the olfactory bulb and extending back to the point at which its fibres enter the base of the cerebrum
- oligosaccharide — any carbohydrate yielding few monosaccharides on hydrolysis, as two, three, or four.
- omega-algebraic — In domain theory, a complete partial order is algebraic if every element is the lub of some chain of compact elements. If the set of compact elements is countable it is omega-algebraic. Usually written with a Greek letter omega (LaTeX \omega).
- omnidirectional — sending or receiving signals in all directions: an omnidirectional microphone.
- on o's haunches — If you get down on your haunches, you lower yourself towards the ground so that your legs are bent under you and you are balancing on your feet.
- on the contrary — opposite in nature or character; diametrically or mutually opposed: contrary to fact; contrary propositions.