18-letter words containing a, c, i, s
- celestial marriage — the rite or state of marriage, performed in a Mormon temple by the Church of Jesus Christ of Latter-day Saints and believed to continue beyond death.
- centralized school — a public school formed from the pupils and teachers of a number of discontinued smaller schools, especially in a rural district.
- cervical screening — a screening for cervical cancer
- cesarean (section) — a surgical operation for delivering a baby by cutting through the mother's abdominal and uterine walls
- chagos archipelago — group of islands in the Indian Ocean 1,180 mi (1,899 km) northeast of Mauritius, comprising the British Indian Ocean Territory: chief island, Diego Garcia
- chambered nautilus — nautilus (def 1).
- championship point — a point that would decide the winner of a match that would decide the championship
- character disorder — a disorder characterized by socially undesirable behavior, as poor control of impulses or inability to maintain close emotional relationships, and by absence of anxiety or guilt.
- character graphics — ASCII art
- characteristically — Also, characteristical. pertaining to, constituting, or indicating the character or peculiar quality of a person or thing; typical; distinctive: Red and gold are the characteristic colors of autumn.
- charismatic church — a church that emphasizes communal prayer and the charismatic gifts of speaking in tongues, healing, etc
- chattering classes — The chattering classes are people such as journalists, broadcasters, or public figures who comment on events but have little or no influence over them.
- chebyshev equation — Tchebycheff equation.
- chickenheartedness — Alternative form of chicken-heartedness.
- children of israel — the Jews; Hebrews
- 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 water deer — a small Chinese or Korean deer, Hydropotes inermis, having tusks and no antlers: introduced into England and France
- 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.
- christian brethren — Brother of the Christian Schools.
- christian brothers — a religious congregation of laymen founded in France in 1684 for the education of the poor
- christian democrat — a member or supporter of a Christian Democratic party
- christian endeavor — an organization of young people of various evangelical Protestant churches, formed in 1881 to promote Christian principles and service.
- christian reformed — of or relating to a Protestant denomination (Christian Reformed Church) organized in the U.S. in 1857 by groups that had seceded from the Dutch Reformed Church.
- christine de pisan — ?1364–?1430, French poet and prose writer, born in Venice. Her works include ballads, rondeaux, lays, and a biography of Charles V of France
- christmas shopping — shopping especially for Christmas presents, but also for Christmas food and drink, and all the other things required over the Christmas period.
- christmas stocking — A Christmas stocking is a long sock which children hang up on Christmas Eve. During the night, parents fill the stocking with small presents.
- chromatic semitone — the pitch difference between one note and its sharpened or flattened equivalent
- chronic alcoholism — long-term alcohol addiction
- chronostratigraphy — The branch of geology concerned with establishing the absolute ages of strata.
- cicatricial tissue — scar tissue.
- cigar-store indian — a wooden statue of an American Indian, traditionally displayed at the entrance of cigar stores.
- 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
- citizenship papers — the document stating that a naturalized person has been formally declared a citizen
- classical armenian — the oldest form of the Armenian language according to written sources, in use from the 5th to the 18th century.
- classical sanskrit — Sanskrit of an ancient period earlier than that of the Prakrits and later than Vedic.
- classified section — the part of a publication that contains classified advertising
- claustrophobically — In a claustrophobic way.
- clean as a whistle — If you describe something as clean as a whistle, you mean that it is completely clean.
- 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 scholarship — a scholarship for which only certain people, such as those from a particular school or with a particular surname, are eligible
- 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
- collection charges — the charges levied to cover expenses for the collection of debt
- collision coverage — Collision coverage is insurance cover for vehicle accidents.
- 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
- combination square — an adjustable device for carpenters, used as a try square, miter square, level, etc.