9-letter words containing o, t, s
- ceratodus — any of various extinct lungfish constituting the genus Ceratodus, common in Cretaceous and Triassic times
- certosina — a technique of inlaying light-colored material, as bone, ivory, metal, or pale wood, in elaborate designs on a dark ground.
- cespitose — growing in dense, matlike clumps without creeping stems, as moss, grass, etc.
- cespitous — Turfy; resembling turf.
- cessation — The cessation of something is the stopping of it.
- cetaceous — Relating to whales or more generally to any marine mammal of the order Cetacea.
- cetshwayo — ?1826–84, king of the Zulus (1873–79): defeated the British at Isandhlwana (1879) but was overwhelmed by them at Ulundi (1879); captured, he stated his case in London, and was reinstated as ruler of part of Zululand (1883)
- chamosite — a mineral of the chlorite group, hydrous aluminum silicate of iron, occurring in gray or black crystals in oolitic iron ore.
- charoseth — haroseth.
- chaseport — a porthole through which a gun was fired
- chassepot — a breech-loading bolt-action rifle formerly used by the French Army
- chat show — A chat show is a television or radio show in which people talk in a friendly, informal way about different topics.
- chatrooms — Plural form of chatroom.
- checkouts — Plural form of checkout.
- chelators — Plural form of chelator.
- chemostat — an apparatus for growing bacterial cultures at a constant rate by controlling the supply of nutrient medium
- chip shot — a short approach shot to the green, esp one that is lofted
- chipotles — Plural form of chipotle.
- chitinous — a nitrogen-containing polysaccharide, related chemically to cellulose, that forms a semitransparent horny substance and is a principal constituent of the exoskeleton, or outer covering, of insects, crustaceans, and arachnids.
- chlorates — Plural form of chlorate.
- chlorites — Plural form of chlorite.
- cholecyst — the gallbladder
- chopsteak — chopped steak.
- chopstick — Chopsticks are a pair of thin sticks which people in China and the Far East use to eat their food.
- choralist — a person who sings in a chorus or ensemble
- chordates — belonging or pertaining to the phylum Chordata, comprising the true vertebrates and those animals having a notochord, as the lancelets and tunicates.
- chorister — A chorister is a singer in a church choir.
- christoff — Boris. 1919–93, Bulgarian bass-baritone, noted esp for his performance in the title role of Mussorgsky's Boris Godunov
- chromates — Plural form of chromate.
- cistronic — cistron-related
- citations — Plural form of citation.
- clafoutis — a French baked pudding
- claystone — a compact very fine-grained rock consisting of consolidated clay particles
- clinostat — an apparatus for studying tropisms in plants, usually a rotating disc to which the plant is attached so that it receives an equal stimulus on all sides
- cloacitis — inflammation of the cloaca in birds, including domestic fowl, and other animals with a common opening of the urinary and gastrointestinal tracts
- cloisters — Plural form of cloister.
- cloistral — of, like, or characteristic of a cloister
- close out — to terminate (a client's or other account) on which the margin is inadequate or exhausted, usually by sale of securities to realize cash
- close-set — (esp of the eyes) positioned close together
- closeouts — Plural form of closeout.
- closetful — a quantity that may be contained in a closet
- closeting — Present participle of closet.
- clothiers — Plural form of clothier.
- clothings — Plural form of clothing.
- cloudiest — Superlative form of cloudy.
- cnidocyst — a nematocyst.
- coastally — In a coastal manner.
- coastland — the land fringing a coast
- coastline — A country's coastline is the outline of its coast.
- coastward — towards the coast