16-letter words containing a, c, t, o
- circumnavigation — to sail or fly around; make the circuit of by navigation: to circumnavigate the earth.
- circumnavigatory — Pertaining to circumnavigation.
- 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.
- 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.
- clean technology — techniques used in manufacturing processes that minimize the damage caused to the environment
- cleaning product — a detergent or other household cleaner
- clermont-ferrand — a city in S central France: capital of Puy-de-Dôme department; industrial centre. Pop: 140 957 (2011)
- 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.
- close by/at hand — Something that is close by or close at hand is near to you.
- 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.
- 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
- cock of the walk — a person who asserts himself or herself in a strutting pompous way
- 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.
- coign of vantage — an advantageous position or stance for observation or action
- coital exanthema — a common venereal disease affecting horses and cattle, caused by a virus and characterized by the appearance of pustules on the mucous membranes of the genital organs and neighboring skin.
- cold wall effect — the condition or state of having large or multiple windows through which heat escapes and cold air is conducted into a heated room via radiation.
- coleridge-taylor — Samuel. 1875–1912, British composer, best known for his trilogy of oratorios Song of Hiawatha (1898–1900)
- collaborationism — The act of collaborating, especially with an enemy.
- collaborationist — A collaborationist government or individual is one that helps or gives support to the enemy during the war.
- collection plate — a plate that is used in church to collect money for charity or the support of the church
- collectivisation — Alternative spelling of collectivization.
- collectivization — to organize (a people, industry, economy, etc.) according to the principles of collectivism.
- college graduate — a student who has recently graduated from college
- colles' fracture — a fracture of the radius just above the wrist, with backward and outward displacement of the hand
- colonial heights — a town in central Virginia.
- colorado plateau — a plateau in the SW United States, in N Arizona, NW New Mexico, S Utah, and SW Colorado: location of the Grand Canyon.
- colorimetrically — (analytical chemistry) By means of colorimetry or by using a colorimeter.
- columbia heights — a city in SE Minnesota, near Minneapolis.
- column extractor — A column extractor is a tall vessel in which one liquid removes something from another liquid using physical contact.
- combination door — an outside door having a frame into which different types of panels can be inserted, as a screen for summer or storm sash for winter.
- combination drug — a medication comprised of set dosages of two or more separate drugs.
- combination last — a shoe last that has a narrower heel or instep than the standard last.
- combination lock — A combination lock is a lock which can only be opened by turning a dial or a number of dials according to a particular series of letters or numbers.
- combination room — (at Cambridge University) a common room
- combination shot — a shot in pool in which the cue ball strikes at least one object ball before contact is made with the ball to be pocketed.
- combination skin — facial skin that is dry in some areas and greasy in others