18-letter words containing o, n, c, a
- northeast corridor — the long, narrow strip of land between Boston, New York City, and Washington, D.C., containing many adjacent urban areas.
- northern cameroons — German Kamerun. a region in W Africa: a German protectorate 1884–1919; divided in 1919 into British and French mandates.
- not to have a clue — to be completely baffled
- noun incorporation — a process in word formation by which a compound is created by affixing or infixing a noun to a verb, as in baby-sit, house-hunt, and sleep-walk.
- nova scotia salmon — an Atlantic salmon, especially from the waters off Nova Scotia, cured in the local manner.
- numerical taxonomy — classification of organisms by a comparison of large numbers of observable characteristics that are given equal value instead of being weighted according to possible evolutionary significance.
- nurse practitioner — a registered nurse who has received special training for diagnosing and treating routine or minor ailments. Abbreviation: NP.
- nurse-practitioner — a registered nurse who has received special training for diagnosing and treating routine or minor ailments. Abbreviation: NP.
- oath of allegiance — pledge to one's nation
- obedience training — the training of an animal, especially a dog, to obey certain commands.
- object-orientation — object-oriented
- occasional licence — a licence granted to sell alcohol only at specified times
- occupational group — An occupational group is a category used by insurance companies to classify jobs according to how hazardous they are.
- octachlorobiphenyl — (organic compound) Either of twelve isomers of the polychlorinated biphenyl containing eight chlorine atoms.
- oedipus at colonus — a tragedy by Sophocles, written toward the end of his life and produced posthumously in 401? b.c.
- office of readings — the first of the canonical hours; matins
- oil of catechumens — holy oil used in baptism, the ordination of a cleric, the coronation of a sovereign, or in the consecration of a church.
- old low franconian — a Low German dialect of the Franks of the lower Rhine valley before c1100.
- on a sticky wicket — in an awkward situation
- on automatic pilot — If you are on automatic pilot or on autopilot, you are acting without thinking about what you are doing, usually because you have done it many times before.
- on delicate ground — in a situation requiring tact
- on that/this score — You can use on that score or on this score to refer to something that has just been mentioned, especially an area of difficulty or concern.
- on the back burner — low priority
- once in a lifetime — extremely rarely
- open-collar worker — (job) Someone who works at home or telecommutes.
- optical brightener — an additive that dyes and brightens fabric or paper
- optical soundtrack — the final soundtrack on a motion picture, which appears as a band of black and white serrations along a strip of film to the left of the composite print. Light is shined through the serrations and is converted to audible sound.
- oracle corporation — (company) The world's leading supplier of information management software. The company, worth $2 billion, offers its products, along with related consulting, education and support services in more than 90 countries around the world. Oracle is best known for its database management systems vendor and relational DBMS products. Oracle develops and markets Oracle Media Server and the Oracle7 family of software products for database management; Co-operative Development Environment and Oracle Co-operative Applications Oracle software runs on personal digital assistants, set-top boxs, IBM PCs, workstations, minicomputers, mainframes and massively parallel computers. Oracle bought Sun Microsystems on 2009-04-20. See also Adaptable User Interface, Bookviewer, CASE*Method, Component Integration Laboratories, DDE Manager, Online Media, Oracle Card, Oracle*CASE, siod. Address: Redwood Shores, CA, USA.
- oral contraceptive — birth-control pill.
- organic solidarity — social cohesiveness that is based on division of labor and interdependence and is characteristic of complex, industrial societies.
- organization chart — a diagrammatic representation showing how departments or divisions in an organization, as a large corporation, are related to one another along lines of authority.
- oriental cat's-eye — a chatoyant variety of chrysoberyl, used as a gem.
- oriental cockroach — a dark-brown cockroach, Blatta orientalis, thought to have originated in Asia but now nearly cosmopolitan in distribution.
- oriental scops owl — any of a group of small owls having ear tufts and a whistling call, especially Otus scops (Old World scops owl) and O. sunia (Oriental scops owl)
- orientation course — induction into sth
- orthotungstic acid — an oxyacid acid of tungsten. Formula: H2WO4
- oscillating engine — a steam engine having piston rods connected directly to the crankshaft and cylinders oscillating on trunnions.
- osteogenic sarcoma — osteosarcoma
- osteoradionecrosis — bone tissue death induced by radiation.
- out of circulation — If someone is out of circulation, they do not appear in public or at social gatherings for a period of time. You can also say that someone is out of circulation when they are in prison.
- over-pronunciation — to pronounce (a word, syllable, etc.) in an exaggerated, affected, or excessively careful manner.
- overcapitalization — The state of being overcapitalized.
- overidentification — an act or instance of identifying; the state of being identified.
- overspecialization — excessive specialization, as in a field of study.
- oxalosuccinic acid — an organic acid, C 6 H 6 O 7 , that is an intermediate formed by the dehydrogenation of isocitric acid in fat and carbohydrate metabolism.
- pacinian corpuscle — (sometimes lowercase) a microscopic, onionlike body consisting of layers of connective tissue wrapped around a nerve ending, located in the deep layers of skin, tendons, etc., and functioning as a sensory receptor of pressure and vibration.
- packet switch node — (PSN) A dedicated computer whose purpose is to accept, route and forward packets in a packet-switched network.
- pairs championship — an event in a sport such as tennis or darts open to pairs of competitors
- pan american union — a former organization of American republics dedicated to furthering understanding and peace: replaced in 1970 by the secretariat of the Organization of American States.
- parallactic motion — the apparent motion of stars due to the earth's orbital motion.