15-letter words containing c, a, t, o, n, i
- aortic stenosis — abnormal narrowing of the aorta, especially of its orifice, usually as a result of rheumatic fever or embryologic anomalies.
- apostolicalness — The state or quality of being apostolical.
- apple macintosh — Macintosh
- apprentice work — work done when young and a novice
- archaeobotanist — A person engaged in archaeobotany.
- architectonical — Alternative form of architectonic.
- arms inspection — the official checking of a country's weapons and other military equipment, usually to check that international agreements have been respected
- association law — any law governing the association of ideas
- astrodynamicist — a person who studies astrodynamics
- astronautically — In an astronautic way.
- at short notice — Notice is used in expressions such as 'at short notice', 'at a moment's notice' or 'at twenty-four hours' notice', to indicate that something can or must be done within a short period of time.
- atlantic salmon — a valuable food and game fish, Salmo salar, mainly of northern coastal Atlantic waters or, when spawning, in freshwater streams tributary to the ocean.
- audubon society — a North American organization devoted to the conservancy of birds
- authentications — Plural form of authentication.
- autocannibalism — The eating of part of one's own body.
- autocollimation — the process used in an autocollimator.
- autocorrelation — the condition occurring when successive items in a series are correlated so that their covariance is not zero and they are not independent
- autoinoculation — the inoculation of microorganisms (esp viruses) from one part of the body into another, usually in the form of a vaccine
- back projection — a method of projecting pictures onto a translucent screen so that they are viewed from the opposite side, used esp in films to create the illusion that the actors in the foreground are moving
- backup rotation — (operating system) Any system for re-using backup media, e.g. magnetic tape. One extreme would be to use the same media for every backup (e.g. copy disk A to disk B), the other extreme would be to use new media every time. The trade-off is between the cost of buying and storing media and the ability to restore any version of any file. One example is the Grandfather, Father, Son (GFS) scheme.
- baconian method — induction (def 4a).
- baconian theory — the theory attributing the authorship of Shakespeare's plays to Francis Bacon.
- badminton court — the court on which games of badminton are played
- banking product — one of the various services offered by a bank to its customers: mortgages, loans, insurance etc
- bargain counter — a store counter on which goods are displayed for sale at reduced prices
- basic education — (in India) education in which all teaching is correlated with the learning of a craft
- bathing costume — A bathing costume is a piece of clothing that is worn for swimming, especially by women and girls.
- benedict arnold — Benedict, 1741–1801, American general in the Revolutionary War who became a traitor.
- beta conversion — (theory) A term from lambda-calculus for beta reduction or beta abstraction.
- bidirectionally — in a bidirectional manner
- bioaccumulation — the process in which industrial waste, toxic chemicals, etc. gradually accumulate in living tissue
- bioastronautics — the study of the effects of space flight on living organisms
- biogasification — the conversion of organic matter into biogas.
- biostatistician — someone who studies or works professionally in the field of biostatistics
- bituminous coal — a soft black coal, rich in volatile hydrocarbons, that burns with a smoky yellow flame. Fixed carbon content: 46–86 per cent; calorific value: 1.93 × 107 – 3.63 × 107 J/kg
- black mountains — a mountain range running from N Monmouthshire and SE Powys (Wales) to SW Herefordshire (England). Highest peak: Waun Fach, 811 m (2660 ft)
- black operation — a covert and undocumented military operation
- blast injection — the injection of liquid fuel directly into the cylinder of an internal-combustion engine using a blast of high-pressure air to atomize the spray of fuel
- boa constrictor — A boa constrictor is a large snake that kills animals by wrapping itself round their bodies and squeezing them to death. Boa constrictors are found mainly in South and Central America and the West Indies.
- bowel complaint — bowel disease or condition
- brachistochrone — the curve between two points through which a body moves under the force of gravity in a shorter time than for any other curve; the path of quickest descent
- branchiostegous — branchiostegal.
- bristol channel — an inlet of the Atlantic, between S Wales and SW England, merging into the Severn estuary. Length: about 137 km (85 miles)
- britneyfication — the effect on clothes and fashions of following the revealing styles favoured by the US pop singer Britney Spears (born 1981)
- bronchial tubes — the bronchi or their smaller divisions
- buy-back option — the option for a company to buy some or all of its shares from an investor, who acquired them by putting venture capital into the company when it was formed
- cadmean victory — a victory won with great losses to the victors
- cairngorm-stone — smoky quartz.
- calamine lotion — a soothing lotion containing calamine
- calendarization — the process of calendarizing