15-letter words containing c, o, s, t, m, a
- accepted masons — a member of a widely distributed secret order (Free and Accepted Masons) having for its object mutual assistance and the promotion of brotherly love among its members.
- acclimatisation — Alternative spelling of acclimatization.
- accomplishments — Plural form of accomplishment.
- achromatic lens — a system of two or more lenses that is substantially free from chromatic aberration and in which the lenses are made of different substances so that the focal length of the system is the same for two or three wavelengths of light.
- acknowledgments — a section of text containing an author’s statement acknowledging his or her use of the works of other authors and thanking the people who have helped him or her, usually printed at the front of a book
- actinochemistry — the branch of chemistry dealing with actinism; photochemistry.
- adenoidectomies — Plural form of adenoidectomy.
- adrenalectomies — Plural form of adrenalectomy.
- aerodynamicists — Plural form of aerodynamicist.
- aluminosilicate — a silicate in which some of the silicon in the tetrahedral unit SiO4 has been replaced by aluminium
- ambrosian chant — the liturgical chant, established by Saint Ambrose, characterized by ornamented, often antiphonal, singing.
- amenity society — a voluntary society established with the purpose of preserving historic art and architecture
- american smooth — a style of competitive ballroom dancing which incorporates elements of Latin dance
- americanologist — a foreign expert or specialist in American cultural or political matters: a leading Americanologist in the Kremlin.
- ancylostomiasis — infestation of the human intestine with blood-sucking hookworms, causing progressive anaemia
- anomalistically — In an anomalistic manner; with irregularity.
- anthropometrics — the science of measuring the size and proportions of the human body (called anthropometry), especially as applied to the design of furniture and machines.
- anti-conformist — a person who conforms, especially unquestioningly, to the usual practices or standards of a group, society, etc.
- anticolonialism — the opposition to colonialism
- antiromanticism — the opposition to romanticism
- apple macintosh — Macintosh
- archaeastronomy — (astronomy, archaeology) The historical, especially archeological, study of astronomy; the study of the astronomical systems and methods of ancient cultures often embracing the astrology and cosmology of the past.
- archeoastronomy — the branch of archaeology that deals with the apparent use by prehistoric civilizations of astronomical techniques to establish the seasons or the cycle of the year, especially as evidenced in the construction of megaliths and other ritual structures.
- arms inspection — the official checking of a country's weapons and other military equipment, usually to check that international agreements have been respected
- asbestos cement — a compound of asbestos fiber and Portland cement formerly used for various nonstructural building purposes.
- astrodynamicist — a person who studies astrodynamics
- as…as they come — the most characteristic example of a class or type
- 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.
- atmospherically — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- autocannibalism — The eating of part of one's own body.
- autodidacticism — any self-directed learning or self-education
- automatic focus — a system in a camera which automatically adjusts the lens so that the object being photographed is in focus, often one using infrared light to estimate the distance of the object from the camera
- basidiomycetous — belonging or pertaining to the basidiomycetes.
- bathing costume — A bathing costume is a piece of clothing that is worn for swimming, especially by women and girls.
- bathroom scales — scales typically kept in a bathroom for people to weigh themselves
- 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)
- boston massacre — an outbreak (1770) in Boston against British troops, in which a few citizens were killed
- box the compass — to name the compass points in order
- brachystomatous — having a short proboscis, as certain insects.
- broadcast storm — (networking) A broadcast on a network that causes multiple hosts to respond by broadcasting themselves, causing the storm to grow exponentially in severity. See network meltdown.
- cairngorm-stone — smoky quartz.
- capitulationism — advocacy or approval of capitulation.
- carpometacarpus — a bone in the wing of a bird that consists of the metacarpal bones and some of the carpal bones fused together
- casement-window — a window sash opening on hinges that are generally attached to the upright side of its frame.
- cassette memory — a removable magnetic tape cartridge that stores data and programs.
- castanospermine — a substance obtained from the Australian chestnut or black bean tree
- casters-up mode — [IBM, probably from slang belly up] Yet another synonym for "broken" or "down". Usually connotes a major failure. A system (hardware or software) which is "down" may be already being restarted before the failure is noticed, whereas one which is "casters up" is usually a good excuse to take the rest of the day off (as long as you're not responsible for fixing it).
- castrametations — Plural form of castrametation.
- chamois leather — soft cleaning cloth
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