16-letter words containing a, c, t, i
- christmas island — an island in the Indian Ocean, south of Java: administered by Singapore (1900–58), now by Australia; phosphate mining. Pop: 1496 (2013 est). Area: 135 sq km (52 sq miles)
- christmas lights — strings of lights put up in the Christmas period to decorate houses
- chromatic number — (mathematics) The smallest number of colours necessary to colour the nodes of a graph so that no two adjacent nodes have the same colour. See also: four colour map theorem.
- chromatographies — Plural form of chromatography.
- chromium plating — plating, often for decorative effect, made of chromium
- chromolithograph — a picture produced by chromolithography
- chryselephantine — (of ancient Greek statues) made of or overlaid with gold and ivory
- cigarette beetle — a small cylindrical beetle, Lasioderma serricorne, that is a pest, especially of dried tobacco.
- cigarette holder — A cigarette holder is a narrow tube that you can put a cigarette into in order to hold it while you smoke it.
- cinnamyl acetate — a colorless liquid, C 11 H 12 O 2 , having a piquant, flowerlike odor: used as a fixative in the manufacture of perfumes.
- circuit analyzer — multimeter.
- circuit calculus — (CIRCAL) A process algebra used to model and verify the design correctness of concurrent systems such as digital logic.
- circuit training — Circuit training is a type of physical training in which you do a series of different exercises, each for a few minutes.
- circumambulating — Present participle of circumambulate.
- circumambulation — The act of walking around something in a circle, especially for a ritual purpose.
- circumlocutional — Of or relating to circumlocution : circumlocutionary.
- circumnavigating — Present participle of circumnavigate.
- circumnavigation — to sail or fly around; make the circuit of by navigation: to circumnavigate the earth.
- circumnavigatory — Pertaining to circumnavigation.
- circumstantially — of pertaining to, or derived from circumstances: a circumstantial result.
- circumstantiated — Simple past tense and past participle of circumstantiate.
- circumstantiates — Third-person singular simple present indicative form of circumstantiate.
- cisaconitic acid — a stereoisomer of 1-propene-1,2,3 tricarboxylic acid, C 6 H 6 O 6 , an important intermediate in the Krebs cycle.
- citizen's arrest — If someone makes a citizen's arrest, they catch someone who they believe has committed a crime and inform the police.
- citronella grass — a tropical Asian grass, Cymbopogon (or Andropogon) nardus, with bluish-green lemon-scented leaves
- city of aberdeen — a council area in NE Scotland, established in 1996. Pop: 206 600 (2003 est). Area: 186 sq km (72 sq miles)
- civil air patrol — a voluntary organization performing emergency services, as assisting the U.S. Air Force on search missions, and offering aerospace-education and youth programs: founded 1941. Abbreviation: CAP.
- civilian clothes — not military uniform
- cladogenetically — By means of cladogenesis.
- clarified butter — butter with the water and milk solids removed, used for cooking at high temperatures without burning
- clay-with-flints — a deposit of stiff clay containing unworn whole flints in the S England
- clbuttic mistake — the humorous effect created by anti-obscenity filters that automatically replace offensive words in online articles with more acceptable variants
- cleaning product — a detergent or other household cleaner
- cleansing tissue — a small piece of absorbent paper, used especially for removing cleansing cream and cosmetics and also serving as a disposable handkerchief.
- clearsightedness — The property of being clearsighted.
- climatologically — In climatological terms.
- cloak-and-suiter — a manufacturer or seller of clothing.
- cloakroom ticket — a ticket given to someone who checks a coat or other personal item into a cloakroom and which is used to redeem that item at a later period
- cloistered vault — a vault having the form of a number of intersecting coves.
- closed-captioned — (of a video recording) having subtitles which appear on screen only if the cassette is played through a special decoder
- closing argument — In a court case, a lawyer's closing argument is their final speech, in which they give a summary of their case.
- cluster variable — RR Lyrae star.
- co-determination — a system of industrial management in which workers share responsibility for the operation of a company, as through elected representation on a corporate supervisory board
- coadministration — Joint administration.
- cochineal cactus — a treelike cactus, Nopalea cochenillifera, of Mexico and Central America, that is a principal source of food of the cochineal insect.
- cochineal insect — a Mexican homopterous insect, Dactylopius coccus, that feeds on cacti
- cochlear implant — a device that stimulates the acoustic nerve in the inner ear in order to produce some form of hearing in people who are deaf from inner ear disease
- cocktail cabinet — a cupboard in which glasses and bottles are kept
- cocktail sausage — a small sausage served with drinks
- code of practice — A code of practice is a set of written rules which explains how people working in a particular profession should behave.