16-letter words containing a, c, d, i
- cascade particle — the least massive member of the xi particle family.
- cash on delivery — If you pay for goods cash on delivery, you pay for them in cash when they are delivered. The abbreviation C.O.D. is also used.
- cassini division — the gap or dark region between the two main outer rings of Saturn: it has a width of about 4,700 km (2,920 mi)
- casting director — the person in charge of choosing of actors for a production
- catchwater drain — a channel cut along the edge of high ground to catch surface water from it and divert it away from low-lying ground
- catherine howard — Catherine, c1520–42, fifth wife of Henry VIII.
- cedar revolution — the popular protests in 2005 that brought down the Lebanese cabinet and prompted Syria to withdraw its troops from Lebanon
- central cylinder — stele (def 4).
- cepheid variable — any of a class of variable stars with regular cycles of variations in luminosity (most ranging from three to fifty days). There is a relationship between the periods of variation and the absolute magnitudes, which is used for measuring the distance of such stars
- chagas---disease — an infectious disease caused by the protozoan Trypanosoma cruzi, occurring chiefly in tropical America and characterized by irregular fever, palpable lymph nodes, and often heart damage.
- chain of command — the various individual officers, ranks etc that constitute a hierarchy each level receiving orders from the one above it and passing on the orders to the one below
- channel islander — a person who comes from one of the Channel Islands
- charged particle — an atomic particle with a positive or negative charge, as an electron, proton, or helium ion
- charmed particle — See at charmed (def 2).
- chevaux-de-frise — plural of cheval-de-frise.
- chichagof island — an island of Alaska, in the Alexander Archipelago. Area: 5439 sq km (2100 sq miles)
- chiclet keyboard — (hardware, abuse) A keyboard with a small, flat rectangular or lozenge-shaped rubber or plastic keys that look like pieces of Chiclets chewing gum. Used especially to describe the original IBM PCjr keyboard. Vendors unanimously liked these because they were cheap, and a lot of early portable and laptop computers were launched with them. Customers rejected the idea with almost equal unanimity, and chiclets are not often seen on anything larger than a digital watch any more.
- child psychiatry — the branch of psychiatry specializing in the treatment of children.
- childcare center — a place or business offering childcare for working parents
- childcare worker — someone who takes care of children in return for money
- children's panel — (in Scotland) a group of representatives of relevant agencies, with the power to deal with a child under sixteen who is in criminal or family trouble. Its hearings are private and replace most of the functions of juvenile courts
- chinese calendar — the former calendar of China, in which the year consisted of 12 lunar months with an intercalary month added seven times every 19 years to reconcile the lunar year of 354 days with the solar year of 365 days, time being reckoned in 60-year cycles with the first cycle dating from 2637 b.c.
- chinese windlass — differential windlass
- chipped potatoes — chips
- chloracetic acid — chloroacetic acid.
- chlordiazepoxide — a chemical compound used as a tranquillizer and muscle relaxant and in the treatment of delirium tremens. Formula: C16H14ClN3O
- chlorinated lime — bleaching powder.
- chlorogenic acid — a colorless crystalline acid, C 16 H 18 O 9 , that is important in plant metabolism and is purportedly responsible for the browning or blackening of cut apples, potatoes, and other fruits and vegetables.
- chondrodysplasia — (medicine) A genetic disorder characterized by short-limbed dwarfism.
- christmas dinner — the main meal on Christmas day, eaten any time in the afternoon or evening
- 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)
- churidar pyjamas — long tight-fitting trousers, worn by Indian men and women
- 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.
- circumstantiated — Simple past tense and past participle 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.
- city of aberdeen — a council area in NE Scotland, established in 1996. Pop: 206 600 (2003 est). Area: 186 sq km (72 sq miles)
- cladogenetically — By means of cladogenesis.
- clarified butter — butter with the water and milk solids removed, used for cooking at high temperatures without burning
- cleaning product — a detergent or other household cleaner
- clearsightedness — The property of being clearsighted.
- cloak-and-suiter — a manufacturer or seller of clothing.
- 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
- 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.
- code of practice — A code of practice is a set of written rules which explains how people working in a particular profession should behave.
- coleridge-taylor — Samuel. 1875–1912, British composer, best known for his trilogy of oratorios Song of Hiawatha (1898–1900)
- collagen disease — any of a group of diseases, as systemic lupus erythematosus, polyarteritis, scleroderma, and rheumatoid arthritis, involving inflammation or degeneration of connective tissue and accompanied by deposition of fibrinous material.
- colorado springs — a city and resort in central Colorado. Pop: 370 448 (2003 est)
- 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.