17-letter words containing a, t, o, r
- center of gravity — The center of gravity of an object is a point in it. If this point is above the base of the object, it stays stable, rather than falling over.
- 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
- centre of gravity — The centre of gravity of an object is a point in it. If this point is above the base of the object, it stays stable, rather than falling over.
- 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
- chamber orchestra — A chamber orchestra is a small orchestra which plays classical music.
- characterisations — Plural form of characterisation.
- characterizations — portrayal; description: the actor's characterization of a politician.
- characterological — of or relating to character or the study of character
- charles townshend — Charles, 1725–67, English politician, chancellor of the exchequer for whom the Townshend Acts are named.
- chart of accounts — A chart of accounts is a list of all the accounts used in a business to classify transactions or report balances.
- charter of rights — a section of the Canadian Constitution containing a statement of the basic rights of citizens of Canada.
- chartered company — a company formed for the purpose of exploration and colonization
- chartered society — a society that has an official charter
- chateau cardboard — wine sold in a winebox
- 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
- chemoradiotherapy — (medicine) A combination of chemotherapy and radiotherapy used to treat some cancers.
- chemotherapeutics — chemotherapy.
- chicklet keyboard — (spelling) It's spelled "chiclet keyboard".
- china grass cloth — grass cloth.
- chinese artichoke — a hairy plant, Stachys affinis, of China and Japan, having numerous small, white, edible tubers.
- chloracetophenone — chloroacetophenone.
- 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
- chloronaphthalene — either of two isomeric naphthalene compounds containing one chlorine atom.
- 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
- chromolithographs — Plural form of chromolithograph.
- chromolithography — the process of making coloured prints by lithography
- 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.
- cistern barometer — a mercury barometer in which the lower mercury surface has a greater area than the upper.
- 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;).
- clare boothe luce — Clare Boothe, 1903–87, U.S. writer, politician, and diplomat.
- 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
- coal-tar creosote — impure phenol or carbolic acid, distinct from the creosote of wood tar.
- coarse-grain salt — salt with a much larger grain size than table salt
- coastguard vessel — a ship used by the coastguard
- cocktail waitress — a woman who serves in a bar or cocktail lounge
- cognitive therapy — a form of psychotherapy in which the patient is encouraged to change the way he or sees the world and himself or herself: used particularly to treat depression
- coin of the realm — legal tender.
- coitus reservatus — the deliberate delaying or avoidance of orgasm during intercourse