20-letter words containing c, u, b, o, i
- labour-saving device — a machine, gadget, etc, that reduces (human) effort, hard work or labour
- land-office business — a lively, booming, expanding, or very profitable business.
- longitude by account — the longitude of the position of a vessel as estimated by dead reckoning.
- macias nguema biyogo — a former name of Bioko.
- member of the public — a member of the general population
- microwave background — a background of microwave electromagnetic radiation with a black-body spectrum discovered in 1965, understood to be the thermal remnant of the big bang with which the universe began
- miliary tuberculosis — tuberculosis in which the bacilli are spread by the blood from one point of infection, producing small tubercles in other parts of the body.
- multiplication table — Arithmetic. a tabular listing of the products of any two numbers of a set, usually of the integers 1 through 10 or 1 through 12.
- obsessive-compulsive — of or relating to a personality style characterized by perfectionism, indecision, conscientiousness, concern with detail, rigidity, and inhibition.
- physical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)
- potassium bichromate — an orange-red, crystalline, water-soluble, poisonous powder, K 2 Cr 2 O 7 , used chiefly in dyeing, photography, and as a laboratory reagent.
- probability function — the function the values of which are probabilities of the distinct outcomes of a discrete random variable
- prohibited substance — a substance, such as a drug, etc, that is banned or forbidden by law or other authority
- public administrator — an official of a city, county, or state government.
- public record office — an institution in which official records are stored and kept available for inspection by the public
- quantum bogodynamics — /kwon'tm boh"goh-di:-nam"iks/ A theory that characterises the universe in terms of bogon sources (such as politicians, used-car salesmen, TV evangelists, and suits in general), bogon sinks (such as taxpayers and computers), and bogosity potential fields. Bogon absorption causes human beings to behave mindlessly and machines to fail (and may also cause both to emit secondary bogons); however, the precise mechanics of bogon-computron interaction are not yet understood. Quantum bogodynamics is most often invoked to explain the sharp increase in hardware and software failures in the presence of suits; the latter emit bogons, which the former absorb.
- quasi-stellar object — quasar. Abbreviation: QSO.
- receivables turnover — A receivables turnover is a measure of cash flow that is calculated by dividing net credit sales by average accounts receivable.
- recursive subroutine — a subroutine that can call itself as part of its execution
- reductio ad absurdum — a reduction to an absurdity; the refutation of a proposition by demonstrating the inevitably absurd conclusion to which it would logically lead.
- republic of maldives — a republic occupying an archipelago of 1087 coral islands in the Indian Ocean, southwest of Sri Lanka: came under British protection in 1887; became independent in 1965 and a republic in 1968; member of the Commonwealth (1982–2016). The economy and infrastructure were severely damaged in the Indian Ocean tsunami of December 2004. Official language: Divehi. Official religion: (Sunni) Muslim. Currency: rufiyaa. Capital: Malé. Pop: 393 988 (2013 est). Area: 298 sq km (115 sq miles)
- rocky mountain basic — (language) The BASIC language used by Hewlett Packard on their 680x0-based computers. Rocky Mountain Basic is good for interfaces to IEEE 488 controls and contains many mathematical and matrix functions. It has about 600 commands. Typical applications include automatic test stations.
- ruby-crowned kinglet — an olive-gray, American kinglet, Regulus calendula, the male of which has an erectile, ruby crest.
- saint john ambulance — an organization that provides first aid and first-aid training
- semiautobiographical — pertaining to or being a fictionalized account of an author's own life.
- straight-cut tobacco — tobacco that is cut in such a way that it will lie flat.
- subjective intension — the associations that an expression has for an individual; the intension he believes it to have
- subscription edition — an edition of one or more volumes for which a number of prospective purchasers place orders, usually in advance of publication.
- subscription library — a commercial lending library
- tchebycheff equation — a differential equation of the form (1 − x 2) d 2 y/dx 2 − x dy/dx + n 2 y = 0, where n is any nonnegative integer.
- telephone subscriber — a person who subscribes to a telephone service
- therapeutic abortion — abortion performed when a woman's pregnancy endangers her health.
- to cross the rubicon — If you say that someone has crossed the Rubicon, you mean that they have reached a point where they cannot change a decision or course of action.
- to disturb the peace — If someone is accused of disturbing the peace, they are accused of behaving in a noisy and offensive way in public.
- tobacco mosaic virus — a retrovirus causing mosaic disease in members of the nightshade family. Abbreviation: TMV.
- tropical disturbance — a very weak, or incipient, tropical cyclone.
- upper income bracket — a grouping of the highest earning tax payers
- war production board — the board (1942–45) that supervised and regulated the production and sale of matériel essential to the logistics of World War II. Abbreviation: WPB, W.P.B.
- wardrobe malfunction — an embarrassing situation caused by the clothes a person is wearing
- white bush (scallop) — a variety of summer squash having a saucer-shaped white fruit, scalloped around the edges
- wilson cloud chamber — cloud chamber.
- yellow-billed cuckoo — a North American cuckoo, Coccyzus americanus, that has a yellow bill and, unlike many cuckoos, constructs its own nest and rears its own young.