10-letter words containing o, y, s, t
- boston ivy — a climbing vine (Parthenocissus tricuspidata) of the grape family, native to Japan and China, having shield-shaped leaves and purple berries: often grown to cover walls
- boy scouts — the worldwide movement founded by Lord Baden-Powell in 1908, now called the Scout Association in the UK and the Boys Scouts of America in the USA, which pursues a programme of activities for boys with the aim of developing character and responsibility
- caecostomy — (surgery) An operation involving bringing the caecum through the abdominal wall, most often by a tube, and opening it for drainage or decompression, usually to treat an obstruction of the colon.
- calotypist — a person who produces photographs using the calotype process
- captiously — In a captious manner.
- castratory — of or relating to castration
- cautiously — showing, using, or characterized by caution: a cautious man; To be cautious is often to show wisdom.
- chemonasty — the nastic movement of a plant in response to a chemical stimulus
- chernovtsy — a city in Ukraine on the Prut River: formerly under Polish, Austro-Hungarian, and Romanian rule; part of the Soviet Union (1947–91). Pop: 237 000 (2005 est)
- cholecysts — Plural form of cholecyst.
- chrysolite — a yellowish-green gem derived chiefly from varieties of olivine
- chrysostom — Saint John. ?345–407 ad, Greek patriarch; archbishop of Constantinople (398–404). Feast day: Sept 13 or Nov 13
- chrysotile — a green, grey, or white fibrous mineral, a variety of serpentine, that is an important source of commercial asbestos. Formula: Mg3Si2O5(OH)4
- clay stone — argillite.
- claystones — argillite.
- clearstory — clerestory
- clerestory — a row of windows in the upper part of the wall of a church that divides the nave from the aisle, set above the aisle roof
- clonotypes — Plural form of clonotype.
- cnidocysts — a nematocyst.
- cocatalyst — a substance that acts in tandem with another as a catalyst
- coenocytes — Plural form of coenocyte.
- collotypes — Plural form of collotype.
- colocynths — Plural form of colocynth.
- consectary — a consequence or conclusion
- consistory — the court of a diocese (other than Canterbury) administering ecclesiastical law
- constantly — not changing or varying; uniform; regular; invariable: All conditions during the three experiments were constant.
- consultory — consultative
- copayments — Plural form of copayment.
- copyrights — Plural form of copyright.
- cosmolatry — the worship of the cosmos
- cost money — If you say that something costs money, you mean that it has to be paid for, and perhaps cannot be afforded.
- costectomy — excision of part or all of a rib.
- costlessly — in a costless manner
- cotyledons — Plural form of cotyledon.
- cotylosaur — any of various members of the extinct order of primitive and massive reptiles known as Cotylosauria, which lived between the Carboniferous and Triassic ages
- counterspy — a spy working against or investigating enemy espionage
- countryish — similar to that which is typical of country music
- courtyards — Plural form of courtyard.
- covetously — inordinately or wrongly desirous of wealth or possessions; greedy.
- cryogenist — of or relating to the production or use of very low temperatures: cryogenic storage.
- cryometers — Plural form of cryometer.
- cryostasis — the deep-freezing of human bodies or other organisms at death; cryonics.
- cryostatic — of or relating to a cryostat
- cryptogams — Plural form of cryptogam.
- crystallo- — crystal
- curiousity — Misspelling of curiosity.
- cutesy-poo — embarrassingly or sickeningly cute.
- cyanotypes — Plural form of cyanotype.
- cyberstore — (computing) A website that allows users to browse and then order products or services via the Internet.
- cyclostome — any primitive aquatic jawless vertebrate of the class Cyclostomata, such as the lamprey and hagfish, having a round sucking mouth and pouchlike gills