15-letter words containing s, i
- chenopodiaceous — belonging to the Chenopodiaceae, formerly the goosefoot family, now considered part of the amaranth family of plants.
- cheshire cheese — a mild-flavoured cheese with a crumbly texture, originally made in Cheshire
- chest infection — a respiratory infection mainly affecting the chest
- chesterfieldian — of or like Lord Chesterfield; suave; elegant; polished
- chestnut blight — a disease of chestnut trees, caused by a fungus (Endothia parasitica), that has virtually destroyed the American chestnut
- cheval de frise — a portable obstacle, usually a sawhorse, covered with projecting spikes or barbed wire, for military use in closing a passage, breaking in a defensive wall, etc.
- cheval-de-frise — a portable barrier of spikes, sword blades, etc, used to obstruct the passage of cavalry
- chewings fescue — a hardy, fine-leaved variety of fescue, Festuca rubra commutata, grown in the U.S. and New Zealand as a lawn grass.
- chi-square test — a test derived from the chi-square distribution to compare the goodness of fit of theoretical and observed frequency distributions or to compare nominal data derived from unmatched groups of subjects
- chiang kai-shek — original name Chiang Chung-cheng, 1887–1975, Chinese general: president of China (1928–31; 1943–49) and of the Republic of China (Taiwan) (1950–75). As chairman of the Kuomintang, he allied with the Communists against the Japanese (1937–45), but in the Civil War that followed was forced to withdraw to Taiwan after his defeat by the Communists (1949)
- chicago heights — a city in NE Illinois, S of Chicago.
- chicken lobster — a young lobster weighing 1 pound (0.4 kg) or less.
- chicken nuggets — small pieces of chicken fried in batter
- chief assistant — the most important or top-ranking assistant to an official
- chief constable — A Chief Constable is the officer who is in charge of the police force in a particular county or area in Britain.
- chief inspector — an officer of high rank in British police forces
- chief secretary — (in Britain) the second most senior Treasury post, after the Chancellor of the Exchequer
- child restraint — a device used to protect a child in a motor vehicle
- child-resistant — that resists being opened, tampered with, or damaged by a child; childproof: a child-resistant medicine cabinet.
- children's home — care institution for minors
- children's hour — a play (1934) by Lillian Hellman.
- chile saltpeter — sodium nitrate, esp. as found naturally in Chile and Peru
- chile saltpetre — a naturally occurring form of sodium nitrate: a soluble white or colourless mineral occurring in arid regions, esp in Chile and Peru
- chimney swallow — another name for common swallow
- chinese cabbage — a Chinese plant, Brassica pekinensis, that is related to the cabbage and has crisp edible leaves growing in a loose cylindrical head
- chinese crested — a small dog of a Chinese breed having long slender legs and a hairless body with hair only on the feet, head, and tail
- chinese gelatin — agar (def 1).
- chinese juniper — a shrub or tree, Juniperus chinensis, of China, Mongolia, and Japan, having scalelike leaves and small, round, purplish-brown fruit.
- chinese lacquer — lacquer (def 2).
- chinese lantern — a collapsible lantern made of thin coloured paper
- chinese mustard — brown mustard.
- chinese parsley — coriander leaves used as an herb; cilantro
- chinless wonder — a person, esp an upper-class one, lacking strength of character
- chintz curtains — curtains made of chintz
- cholangiectasis — Dilation of the bile ducts.
- cholecystokinin — a hormone secreted by duodenal cells that stimulates the contraction of the gall bladder and secretion of pancreatic enzymes
- cholesterolemia — the presence of an abnormal amount of cholesterol in the blood.
- choral speaking — recitation of poetry, dramatic pieces, etc. by a chorus of speakers
- chorioallantois — the membrane of a fetus that is formed by the merging of the allantois and the chorion
- chorioretinitis — (medicine) An inflammation of the choroid and retina of the eye.
- christadelphian — a member of a Christian millenarian sect founded in the US about 1848, holding that only the just will enter eternal life, that the wicked will be annihilated, and that the ignorant, the unconverted, and infants will not be raised from the dead
- christcross-row — the alphabet.
- christmas carol — a joyful hymn or religious song, celebrating the birth of Christ
- christmas party — a party organized before Christmas, usually by a firm or organization
- chromatic scale — a twelve-note scale including all the semitones of the octave
- chronic disease — long-term illness
- chronobiologist — A person who is involved in chronobiology.
- chryse planitia — a plain on Mars, the landing site of the Viking I spacecraft.
- church register — parish register.
- church slavonic — Old Church Slavonic, esp as preserved in the liturgical use of the Orthodox church