18-letter words containing s, c, i, u
- catskill mountains — a mountain range in SE New York State: resort. Highest peak: Slide Mountain, 1261 m (4204 ft)
- caucasus mountains — a mountain range in SW Russia, running along the N borders of Georgia and Azerbaijan, between the Black Sea and the Caspian Sea: mostly over 2700 m (9000 ft). Highest peak: Mount Elbrus, 5642 m (18 510 ft)
- cauliflower cheese — a dish of cauliflower with a cheese sauce, eaten hot
- cauliflower fungus — a large edible white to yellowish cauliflowerlike mushroom, Sparassis radicata, widely distributed in North America.
- causa sine qua non — an indispensable condition; requisite.
- celestial guidance — the guidance of a spacecraft or missile by reference to the position of one or more celestial bodies
- celestial latitude — the angular distance of a celestial body north or south from the ecliptic
- chambered nautilus — nautilus (def 1).
- charismatic church — a church that emphasizes communal prayer and the charismatic gifts of speaking in tongues, healing, etc
- chebyshev equation — Tchebycheff equation.
- children's crusade — a crusade to recover Jerusalem from the Saracens, undertaken in 1212 by thousands of French and German children who perished, were sold into slavery, or were turned back.
- chinese revolution — the overthrow of the last Manchu emperor and the establishment of a republic in China (1911–12)
- chuck-will's-widow — a large North American nightjar, Caprimulgus carolinensis, similar to the whippoorwill
- cicatricial tissue — scar tissue.
- circular dichroism — selective absorption of one of the two possible circular polarizations of light.
- circulatory system — the system concerned with the transport of blood and lymph, consisting of the heart, blood vessels, lymph vessels, etc
- citizen journalism — the involvement of non-professionals in reporting news, esp in blogs and other websites
- claustrophobically — In a claustrophobic way.
- closure conversion — (theory) The transformation of continuation passing style code so that the only free variables of functions are names of other functions. See also Lambda lifting.
- coastguard station — the headquarters or local offices of a coastguard
- cock-a-leekie soup — a soup made from a fowl boiled with leeks
- coffee-table music — unadventurous music
- coitus interruptus — the deliberate withdrawal of the penis from the vagina before ejaculation
- college of justice — the official name for the Scottish Court of Session; the supreme court of Scotland
- colloidal solution — a mixture having particles of one component, with diameters between 10 −7 and 10 −9 metres, suspended in a continuous phase of another component. The mixture has properties between those of a solution and a fine suspension
- combination square — an adjustable device for carpenters, used as a try square, miter square, level, etc.
- combustion chamber — an enclosed space in which combustion takes place, such as the space above the piston in the cylinder head of an internal-combustion engine or the chambers in a gas turbine or rocket engine in which fuel and oxidant burn
- combustion furnace — a furnace used in the laboratory to carry out elemental analysis of organic compounds
- community hospital — (in the US) a local hospital
- compassion fatigue — the inability to react sympathetically to a crisis, disaster, etc, because of overexposure to previous crises, disasters, etc
- complexity measure — (algorithm) A quantity describing the complexity of a computation.
- composite function — a function obtained from two given functions, where the range of one function is contained in the domain of the second function, by assigning to an element in the domain of the first function that element in the range of the second function whose inverse image is the image of the element.
- composition rubber — manufactured rubber
- computer scientist — a person with advanced knowledge of computers and how they work
- conceptual realism — the doctrine that universals have real and independent existence.
- conceptualisations — Plural form of conceptualisation.
- conceptualizations — Plural form of conceptualization.
- concrete universal — a principle that necessarily has universal import but is also concrete by virtue of its arising in historical situations.
- concussion grenade — a grenade designed to inflict damage by the force of its detonation rather than by the fragmentation of its casing.
- congregate housing — a type of housing in which each individual or family has a private bedroom or living quarters but shares with other residents a common dining room, recreational room, or other facilities.
- conjugate solution — a system of liquids, each partially miscible in the other, existing with a common interface, consisting of a saturated solution of one in the other.
- consequential loss — A consequential loss is a loss that follows another loss that is caused by a danger that has been insured against.
- considered harmful — (programming, humour) A type of phrase based on the title of Edsger W. Dijkstra's famous note in the March 1968 Communications of the ACM, "Goto Statement Considered Harmful", which fired the first salvo in the structured programming wars. Amusingly, the ACM considered the resulting acrimony sufficiently harmful that it will (by policy) no longer print articles taking so assertive a position against a coding practice. In the ensuing decades, a large number of both serious papers and parodies bore titles of the form "X considered Y". The structured-programming wars eventually blew over with the realisation that both sides were wrong, but use of such titles has remained as a persistent minor in-joke.
- constituency party — a branch of a political party operating within a constituency
- constitution clock — an American banjo clock having depicted on its lower part the battle in the War of 1812 between the U.S. frigate Constitution and the British frigate Guerrière.
- constitution state — Connecticut (used as a nickname).
- constitutional law — the body of law that evolves from a constitution, setting out the fundamental principles according to which a state is governed and defining the relationship between the various branches of government within the state.
- constitutionalized — Simple past tense and past participle of constitutionalize.
- construction paper — Construction paper is a type of stiff, colored paper that children use for drawing and for making things.
- constructive proof — (mathematics) A proof that something exists that provides an example or a method for actually constructing it. For example, for any pair of finite real numbers n < 0 and p > 0, there exists a real number 0 < k < 1 such that f(k) = (1-k)*n + k*p = 0. A constructive proof would proceed by rearranging the above to derive an equation for k: k = 1/(1-n/p) From this and the constraints on n and p, we can show that 0 < k < 1. A few mathematicians actually reject *all* non-constructive arguments as invalid; this means, for instance, that the law of the excluded middle (either P or not-P must hold, whatever P is) has to go; this makes proof by contradiction invalid. See intuitionistic logic. Constructive proofs are popular in theoretical computer science, both because computer scientists are less given to abstraction than mathematicians and because intuitionistic logic turns out to be an appropriate theoretical treatment of the foundations of computer science.