13-letter words containing a, c, o, i
- cephaloridine — a cephalosporin antibiotic often used in the treatment of bacterial infections
- cephalosporin — any of a group of broad-spectrum antibiotics obtained from fungi of the genus Cephalosporium
- ceramic oxide — a compound of oxygen with nonorganic material: recently discovered to act as a high-temperature superconductor
- cerebrospinal — of or relating to the brain and spinal cord
- ceremonialism — A fondness for ceremony, especially in religion; ritualism.
- ceremonialist — of, relating to, or characterized by ceremony; formal; ritual: a ceremonial occasion.
- certification — a document attesting the truth of a fact or statement
- certificatory — Serving to certify something.
- ceruloplasmin — a protein responsible for copper detoxification, found in the blood
- cervicography — a method of cervical screening in which the neck of the uterus is photographed to facilitate the early detection of cancer
- chain reactor — reactor (def 4).
- chaise longue — A chaise longue is a kind of sofa with only one arm and usually a back along half its length.
- chaise lounge — A chaise lounge is the same as a chaise longue.
- chalcostibite — a mineral, antimony copper sulfide, CuSbS 2 , occurring in lead-gray crystals.
- chalicotheres — Plural form of chalicothere.
- chameleonlike — any of numerous Old World lizards of the family Chamaeleontidae, characterized by the ability to change the color of their skin, very slow locomotion, and a projectile tongue.
- championships — Plural form of championship.
- chang tso-lin — 1873–1928, Chinese general: military ruler of Manchuria 1918–28.
- changchiak'ou — Zhangjiakou.
- changing room — A changing room is a room where you can change your clothes and usually have a shower, for example at a sports centre.
- changing tone — cambiata.
- changing-note — cambiata.
- chaperoneship — State or position of chaperone.
- charing cross — a district of London, in the city of Westminster: the modern cross (1863) in front of Charing Cross railway station replaces the one erected by Edward I (1290), the last of twelve marking the route of the funeral procession of his queen, Eleanor
- charles louis — (Karl Ludwig Johann) 1771–1847, archduke of Austria.
- charlier shoe — special light horseshoe
- chart-topping — very popular; coming top in the charts
- chase mortise — a mortise having one inclined narrow side.
- cheiromantist — A chiromancer.
- chemical bond — a mutual attraction between two atoms resulting from a redistribution of their outer electrons
- chemosurgical — of or relating to chemosurgery
- chiaochou bay — an inlet of the Yellow Sea, in E China, in Shandong province. 20 miles (32 km) long; 15 miles (24 km) wide.
- chiaroscurist — A painter who uses light and shade rather than colour to create the illusion of volume.
- chicago ridge — a town in NE Illinois.
- chicago steak — a strip steak or, sometimes, a shell steak.
- chicago style — a style of jazz flourishing in Chicago especially in the early 1920s, constituting a direct offshoot of New Orleans style, and differing from its predecessor chiefly in the diminished influence of native folk sources, the greater tension of its group improvisation, the increased emphasis on solos, and the regular use of the tenor saxophone as part of the ensemble.
- chilkoot pass — a mountain pass in North America between SE Alaska and NW British Columbia, over the Coast Range
- chiloe island — an island administered by Chile, off the W coast of South America in the Pacific Ocean: timber. Pop: 154 775 (2002, Chiloé province). Area: 8394 sq km (3240 sq miles)
- chirographist — a person who studies or who is knowledgeable about handwriting styles
- chiromantical — Of or pertaining to chiromancy.
- chiropractics — The practice of a chiropractor.
- chiropractors — Plural form of chiropractor.
- chlorargyrite — a mineral, the naturally occurring form of silver chloride, formed in the oxidation process of silver
- chloroplastic — a plastid containing chlorophyll.
- chlorous acid — an unstable acid that is a strong oxidizing agent. Formula: HClO2
- cholangiogram — an X-ray of the bile duct performed after administering dye into the ducts that shows up on the X-ray
- cholesteremia — cholesterolemia.
- choreographic — Choreographic means relating to or connected with choreography.
- chorepiscopal — (in early Christianity) relating to or connected with a local bishop
- choripetalous — polypetalous