18-letter words containing o, i, l, s, t
- borosilicate glass — any of a range of heat- and chemical-resistant glasses, such as Pyrex, prepared by fusing together boron(III) oxide, silicon dioxide, and, usually, a metal oxide
- bottlenose dolphin — any dolphin of the genus Tursiops, esp T. truncatus, some of which have been kept in captivity and trained to perform tricks
- branch to fishkill — (IBM: from the location of one of the corporation's facilities) Any unexpected jump in a program that produces catastrophic or just plain weird results. See jump off into never-never land, hyperspace.
- brightness control — a control that enables the brightness of the image on a television screen, computer monitor, etc to be adjusted
- british somaliland — a former British protectorate (1884–1960) in E Africa, on the Gulf of Aden: united with Italian Somaliland in 1960 to form Somalia (or the Somali Republic); in 1991 the self-styled republic of Somaliland, covering the same area as the former British Somaliland, declared itself independent and continues to function largely as a separate entity, though without international recognition
- burkitt's lymphoma — a cancer characterized by tumors containing lymphoid cells, occurring esp. in children, in the jaw, eyes, and internal organs: it is associated with the Epstein-Barr virus
- butler's sideboard — a sideboard, often with a fall front, having on its top a china cabinet with glazed doors.
- call into question — to raise a question or doubt about
- cape breton island — an island off SE Canada, in NE Nova Scotia, separated from the mainland by the Strait of Canso: its easternmost point is Cape Breton. Pop: 132 298 (2006). Area: 10 280 sq km (3970 sq miles)
- capital allowances — the money spent by a company on fixed assets which can be taken off the profits of the company before tax is imposed
- carisbrooke castle — a castle near Newport on the Isle of Wight: Charles I was held prisoner here from 1647 until his execution in 1649
- cartilaginous fish — any fish of the class Chondrichthyes, including the sharks, skates, and rays, having a skeleton composed entirely of cartilage
- castration complex — an unconscious fear of having one's genitals removed, as a punishment for wishing to have sex with a parent
- catalogue raisonne — a descriptive catalogue, esp one covering works of art in an exhibition or collection
- catalonian jasmine — a shrub, Jasminum grandiflorum, of India, having crimson-tinged, fragrant white flowers, grown as an ornamental and for perfume.
- catskill mountains — a mountain range in SE New York State: resort. Highest peak: Slide Mountain, 1261 m (4204 ft)
- centralized school — a public school formed from the pupils and teachers of a number of discontinued smaller schools, especially in a rural district.
- child psychologist — a psychologist who specializes in treating children
- chinese revolution — the overthrow of the last Manchu emperor and the establishment of a republic in China (1911–12)
- chinese watermelon — a tropical Asian vine, Benincasa hispida, of the gourd family, having a brown, hairy stem, large, solitary, yellow flowers, and white, melonlike fruit.
- christopher sholes — Christopher Latham [ley-thuh m,, -th uh m] /ˈleɪ θəm,, -ðəm/ (Show IPA), 1819–90, U.S. inventor of the typewriter.
- 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
- classified section — the part of a publication that contains classified advertising
- claustrophobically — In a claustrophobic way.
- closed corporation — a corporation the stock of which is owned by a small number of persons and is rarely traded on the open market
- closed-box testing — functional testing
- coffee-table music — unadventurous music
- collection charges — the charges levied to cover expenses for the collection of debt
- college of justice — the official name for the Scottish Court of Session; the supreme court of Scotland
- collision diameter — the distance between the centers of two colliding molecules when at their closest point of approach.
- 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
- community hospital — (in the US) a local hospital
- complementarianism — The doctrine that genders in a society should have complementary roles.
- complexity measure — (algorithm) A quantity describing the complexity of a computation.
- 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.
- condensation trail — contrail.
- conditional access — the encryption of television programme transmissions so that only authorized subscribers with suitable decoding apparatus may have access to them
- congregationalists — a form of Protestant church government in which each local religious society is independent and self-governing.
- 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.
- consolidation loan — a single loan which is taken out to pay off several separate existing loans
- 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.
- 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.
- continental shield — any of the large, low-lying areas in the Earth's crust that are composed of Precambrian crystalline rocks
- continental system — French system.