17-letter words containing o, r, s, i
- celestial horizon — the line or circle that forms the apparent boundary between earth and sky.
- cellulose nitrate — a compound made by treating cellulose with nitric and sulphuric acids, used in plastics, lacquers, and explosives: a nitrogen-containing ester of cellulose
- cellulose varnish — a varnish made from cellulose nitrate, used as a protective sealing film
- chancery division — (in England) the Lord Chancellor's court, now a division of the High Court of Justice
- characterisations — Plural form of characterisation.
- characterizations — portrayal; description: the actor's characterization of a politician.
- charter of rights — a section of the Canadian Constitution containing a statement of the basic rights of citizens of Canada.
- chartered society — a society that has an official charter
- chelsea pensioner — an old ex-soldier resident in the Chelsea Royal Hospital
- chemotherapeutics — chemotherapy.
- chest compression — Chest compression is the act of applying pressure to someone's chest in order to help blood flow through the heart in an emergency situation.
- china grass cloth — grass cloth.
- chinese artichoke — a hairy plant, Stachys affinis, of China and Japan, having numerous small, white, edible tubers.
- chinese vermilion — pimento (def 3).
- chocolate soldier — a person who mistakenly believes that he or she is very powerful, important, or impressive
- chord progression — movement from chord to chord
- chromolithographs — Plural form of chromolithograph.
- circle the wagons — to take defensive action; prepare for an attack: from arranging a wagon train in a circular formation
- cistern barometer — a mercury barometer in which the lower mercury surface has a greater area than the upper.
- clear box testing — white box testing
- clicks and mortar — making use of traditional trading methods in conjunction with internet trading
- clicks-and-mortar — pertaining to or denoting a company that does business on the Internet and in traditional stores or offices.
- clipperton island — an uninhabited atoll in the E Pacific SW of Mexico, under French administration. Area: 6 sq km (2.3 sq miles)
- close corporation — a small private limited company
- close parenthesis — right parenthesis
- close-order drill — practice in formation marching and other movements, in the carrying of arms during formal marching, and in the formal handling of arms for ceremonies and guard.
- club subscription — an amount of money that someone pays regularly in order to belong to a club
- coarse-grain salt — salt with a much larger grain size than table salt
- cocktail waitress — a woman who serves in a bar or cocktail lounge
- codlins-and-cream — an onagraceous plant, Epilobium hirsutum, native to Europe and Asia and introduced into North America, having purplish-red flowers and hairy stems and leaves
- coitus reservatus — the deliberate delaying or avoidance of orgasm during intercourse
- coliform bacillus — any of several bacilli, especially Escherichia coli and members of the genus Aerobacter, found as commensals in the large intestine of humans and certain other animals, the presence of which in water indicates fecal pollution.
- collaborativeness — Quality of being collaborative.
- collodion process — wet plate process.
- colloid chemistry — the study of colloids.
- colour separation — the division of a coloured original into cyan, magenta, yellow, and black so that plates may be made for print reproduction. Separation may be achieved by electronic scanning or by photographic techniques using filters to isolate each colour
- colour subcarrier — a component of a colour television signal on which is modulated the colour or chrominance information
- colour television — television that broadcasts in real-life colours, as opposed to black and white
- combine harvester — A combine harvester is a large machine which is used on farms to cut, sort, and clean grain.
- come to handgrips — to engage in hand-to-hand fighting
- comedie francaise — the French national theatre, founded in Paris in 1680
- commercialisation — Alternative spelling of commercialization.
- commodity markets — stock markets in which commodities are traded
- common storksbill — a geraniaceous plant, Erodium cicutarium, having pink or reddish-purple flowers and fruits with a beaklike process
- communion service — the Christian ceremony in which people eat bread and drink wine in memory of Christ's death
- community service — Community service is unpaid work that criminals sometimes do as a punishment instead of being sent to prison.
- compartmentalised — Simple past tense and past participle of compartmentalise.
- compartmentalizes — Third-person singular simple present indicative form of compartmentalize.
- complementariness — forming a complement; completing.
- complementarities — Plural form of complementarity.