20-letter words containing o, d, i
- chapter of accidents — a series of misfortunes
- child support agency — the British government agency concerned with the welfare of children
- childhood sweetheart — a boyfriend or girlfriend from an early stage of life
- chromatic adaptation — the alteration by photosynthesizing organisms of the proportions of their photosynthetic pigments in response to the intensity and colour of the available light, as shown by algae in the littoral zone, which change from green to red as the zone is descended
- chromaticity diagram — a diagram in which values of two chromaticity coordinates are marked on a pair of rectangular axes, a point in the plane of these axes representing the chromaticity of any colour
- chrono-logical order — the arrangement of things following one after another in time: Put these documents in chronological order.
- codex juris canonici — the official code of canon law in force in the Roman Catholic Church; introduced in 1918 and revised in 1983
- cognitive dissonance — an uncomfortable mental state resulting from conflicting cognitions; usually resolved by changing some of the cognitions
- coincident indicator — an economic indicator, as gross national product, that typically fluctuates in correlation with the total economy.
- college of cardinals — the collective body of cardinals having the function of electing and advising the pope
- college of education — a professional training college for teachers
- colloidal suspension — a mixture having particles of one component, with diameters between 10 −7 and 10 −9 metres, suspended in a continuous phase of another component. The mixture has properties between those of a solution and a fine suspension
- combination sandwich — a big sandwich with a mixed filling
- commissioned officer — a military officer holding a commission, such as Second Lieutenant in the British Army, Acting Sub-Lieutenant in the Royal Navy, Pilot Officer in the Royal Air Force, and officers of all ranks senior to these
- commissioning editor — a person who commissions authors to write books and magazine articles
- common lodging house — a cheap lodging house
- comparative judgment — any judgment about whether there is a difference between two or more stimuli
- complaints procedure — a prescribed method of lodging a complaint to an institution
- computing dictionary — Free On-line Dictionary of Computing
- condensation nucleus — nucleus (def 5).
- conditioned response — a response that is transferred from the second to the first of a pair of stimuli. A well-known Pavlovian example is salivation by a dog when it hears a bell ring, because food has always been presented when the bell has been rung previously
- conditioned stimulus — a stimulus to which an organism has learned to make a response by classical conditioning
- conductive education — an educational system, developed in Hungary by András Petö, in which teachers (conductors) teach children and adults with motor disorders to function independently, by guiding them to attain their own goals in their own way
- congressional record — (in the US) the government journal that publishes all proceedings of Congress
- conservative judaism — a movement reacting against the radicalism of Reform Judaism, rejecting extreme change and advocating moderate relaxations of traditional Jewish law, by an extension of the process by which its adherents claim traditional Orthodox Judaism evolved
- consumer price index — The consumer price index is an official measure of the rate of inflation within a country's economy. The abbreviation CPI is also used.
- continued proportion — geometric progression
- continuing education — Continuing education is education for adults in a variety of subjects, most of which are practical, not academic.
- continuing-education — adult education.
- contradistinguishing — Present participle of contradistinguish.
- controlled explosion — the deliberate detonation of an explosive device under strictly controlled circumstances
- convective discharge — the repulsion of ions of a gas by a highly charged body, creating a discernible wind.
- coordination complex — one of a number of complex compounds in which an atom or group of atoms is bound to the central atom by a shared pair of electrons supplied by the coordinated group and not by the central atom
- copulative asyndeton — a staccato effect produced by omitting copulative connectives between two or more items in a group, as in “Friends, Romans, countrymen.”.
- core gender identity — a person's inner sense of being male or female, usually developed during early childhood as a result of parental rearing practices and societal influences and strengthened during puberty by hormonal changes.
- coroneted fruit dove — a brightly coloured bird of the Columbidae family with a distinctive marking on its head, found in Indonesia and Papua new Guinea
- corresponding angles — a pair of nonadjacent angles, one interior and one exterior, on the same side of a transversal: these paired angles are equal if the lines cut by the transversal are parallel
- cost-of-living index — a numerical scale by means of which cost-of-living levels can be compared with a base number
- counterdemonstration — a demonstration that is held in reaction to another demonstration
- criminal proceedings — action taken in a court to bring a criminal prosecution against someone
- crisis of confidence — a serious loss of confidence
- cross someone's mind — to come suddenly or briefly to someone's mind
- crossover distortion — distortion that sometimes occurs at a frequency (crossover frequency) at which a crossover network switches signals from one speaker to another.
- crossword dictionary — a dictionary that lists common clues found in crossword puzzles with potential answer words. In books, the lists are usually sorted by the number of letters in the answer, while an online crossword dictionary, such as the Dictionary.com Crossword Solver, is able to analyze queries electronically, examining either the clue or the number and pattern of letters already filled in to arrive at suggested answers.
- crude oil evaluation — Crude oil evaluation is the process of assessing the chemical and physical properties of crude oil, against particular standards.
- cut the gordian knot — to find a quick, bold solution for a perplexing problem
- cycloidal propulsion — propulsion of a vessel by propellers of controllable pitch that steer as well as propel.
- cytosine arabinoside — cytarabine.
- darkfield microscope — kind of microscope
- data dictionary file — (database) (DDF) A set of files describing the structure of a database file. DDFs define database tables and include information about file locations, field layouts and indexes. DDFs are the standard method for defining field and index characteristics for Btrieve files.