17-letter words containing r, o, l, 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
- central committee — (in Communist parties) the body responsible for party policy between meetings of the party congress: in practice, it is in charge of day-to-day operations of the party bureaucracy
- centrifugal force — In physics, centrifugal force is the force that makes objects move outwards when they are spinning around something or travelling in a curve.
- centripetal force — a force that acts inwards on any body that rotates or moves along a curved path and is directed towards the centre of curvature of the path or the axis of rotation
- characterological — of or relating to character or the study of character
- chelsea pensioner — an old ex-soldier resident in the Chelsea Royal Hospital
- chemical property — Chemistry. a property or characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed: Combustibility is an important chemical property to consider when choosing building materials.
- chemical reaction — a process that involves changes in the structure and energy content of atoms, molecules, or ions but not their nuclei
- chicklet keyboard — (spelling) It's spelled "chiclet keyboard".
- child pornography — pornography using a child or children as the subject.
- china grass cloth — grass cloth.
- chinese vermilion — pimento (def 3).
- chloroacetic acid — a colourless crystalline soluble strong acid prepared by chlorinating acetic acid and used as an intermediate in the manufacture of many chemicals; monochloracetic acid. Formula: CH2ClCOOH
- chlortetracycline — an antibiotic used in treating many bacterial and rickettsial infections: obtained from the bacterium Streptomyces aureofaciens. Formula: C22H23ClN2O8
- chocolate soldier — a person who mistakenly believes that he or she is very powerful, important, or impressive
- choreographically — As if choreographed.
- chromolithographs — Plural form of chromolithograph.
- chromolithography — the process of making coloured prints by lithography
- chronographically — a timepiece fitted with a recording device, as a stylus and rotating drum, used to mark the exact instant of an occurrence, especially in astronomy.
- chronological age — the number of years a person has lived, especially when used as a standard against which to measure behavior, intelligence, etc.
- circle the wagons — to take defensive action; prepare for an attack: from arranging a wagon train in a circular formation
- circular function — trigonometric function (def 1).
- circular velocity — the velocity at which a body must move in order to maintain an orbit at the outer edge of the earth's atmosphere.
- circumlocutionary — a roundabout or indirect way of speaking; the use of more words than necessary to express an idea.
- city of gibraltar — a city on the Rock of Gibraltar, a limestone promontory at the tip of S Spain: settled by Moors in 711 and taken by Spain in 1462; ceded to Britain in 1713; a British crown colony (1830–1969), still politically associated with Britain; a naval and air base of strategic importance. Pop: 29 111 (2013 est). Area: 6.5 sq km (2.5 sq miles)
- clairaut equation — a differential equation of the form y = xy prime; + f (y prime;).
- 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.
- clifden nonpareil — a handsome nocturnal moth, Catocala fraxini, that is brown with bluish patches on the hindwings: related to the red underwing
- 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.
- cloverleaf aerial — a type of aerial, having three or four similar coplanar loops arranged symmetrically around an axis, to which in-phase signals are fed
- 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
- coin of the realm — legal tender.
- 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.
- coliform bacteria — a large group of bacteria inhabiting the intestinal tract of humans and animals that may cause disease and whose presence in water is an indicator of faecal pollution
- collaborativeness — Quality of being collaborative.
- collateralization — The act or process of collateralizing.
- collective memory — the shared memories of a group, family, race, etc
- collegiate church — a church that has an endowed chapter of canons and prebendaries attached to it but that is not a cathedral
- colleterial gland — a paired accessory reproductive gland, present in most female insects, secreting a sticky substance that forms either the egg cases or the cement that binds the eggs to a surface
- collodion process — wet plate process.