17-letter words containing a, i, r, l
- carolina parakeet — an extinct New World parakeet, Conuropsis carolinensis, that ranged into the northern U.S., having yellowish-green plumage with an orange-yellow head.
- castle in the air — a hope or desire unlikely to be realized; daydream
- catalytic cracker — a unit in an oil refinery in which mineral oils with high boiling points are converted to fuels with lower boiling points by a catalytic process
- caterpillar track — A Caterpillar track is a linked metal chain fastened around the wheels of a heavy vehicle to help it to move over rough ground.
- cathedral ceiling — a high ceiling formed by or suggesting an open-timbered roof.
- cattle tick fever — Texas fever
- causality paradox — the hypothetical cause-and-effect of time travel and making changes in the past that would affect current actions.
- cavalier servente — a lover; suitor.
- celestial equator — the great circle lying on the celestial sphere, the plane of which is perpendicular to the line joining the north and south celestial poles
- 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 brake — a safety mechanism on a hoist, crane, etc, that consists of revolving brake shoes that are driven outwards by centrifugal force into contact with a fixed brake drum when the rope drum revolves at excessive speed
- 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
- cerebral accident — a disturbance of the blood supply to parts of the brain because of blockage or hemorrhage, causing unconsciousness, paralysis, etc.; stroke
- characterological — of or relating to character or the study of character
- charles lindbergh — Anne (Spencer) Morrow, 1906–2001, U.S. writer (wife of Charles Augustus Lindbergh).
- chelsea pensioner — an old ex-soldier resident in the Chelsea Royal Hospital
- chemical engineer — A chemical engineer is a person who designs and constructs the machines needed for industrial chemical processes.
- 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.
- chinagraph pencil — a coloured pencil used for writing on china, glass, etc
- 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.
- cigarette lighter — A cigarette lighter is a device which produces a small flame when you press a switch and which you use to light a cigarette or cigar.
- circassian walnut — the hard, heavy, brown or purplish wood of the English walnut
- 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 triangle — a triangle in which each side is the arc of a circle
- 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.
- circumstantiality — the quality of being circumstantial
- circumterrestrial — surrounding or revolving about the earth.
- citric acid cycle — Krebs cycle.
- 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)
- ciudad del carmen — a city in SE Mexico, on the Gulf of Campeche.
- civil libertarian — a person who actively supports or works for the protection or expansion of civil liberties.
- civil partnership — A civil partnership is a legal relationship between two people of the same sex that is similar to marriage.
- clairaut equation — a differential equation of the form y = xy prime; + f (y prime;).