20-letter words containing i, t, o, u
- quantum field theory — any theory in which fields are treated by the methods of quantum mechanics; each field can then be regarded as consisting of particles of a particular kind, which may be created and annihilated.
- quarantine anchorage — an anchorage for ships awaiting a pratique.
- quasi-constitutional — of or relating to the constitution of a state, organization, etc.
- quasi-stellar object — quasar. Abbreviation: QSO.
- queen of the prairie — a tall plant, Filipendula rubra, of the rose family, having branching clusters of pink flowers, growing in meadows and prairies.
- quick on the trigger — quick to fire a gun
- radial triangulation — triangulation based upon lines radiating from the center of each of two overlapping photographs to certain objects appearing on each photograph.
- receivables turnover — A receivables turnover is a measure of cash flow that is calculated by dividing net credit sales by average accounts receivable.
- reconcile an account — If you reconcile an account, you compare the items in a bank statement, credit card statement, or vendor statement with the entries on your books and make sure that the statement and books match.
- recursive definition — a definition consisting of a set of rules such that by repeated application of the rules the meaning of the definiendum is uniquely determined in terms of ideas that are already familiar.
- 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.
- refuse disposal unit — a unit or part of a sink that disposes of waste food, etc, by grinding
- relative conjunction — a conjunction that introduces a relative clause
- respiratory quotient — the ratio of the amount of carbon dioxide released by the lungs to the amount of oxygen taken in during a given period.
- retirement community — a group of houses in a suburban area or a town designed primarily for retired persons.
- return of the native — a novel (1878) by Thomas Hardy.
- return on investment — the amount of profit, before tax and after depreciation, from an investment made, usually expressed as a percentage of the original total cost invested. Abbreviation: ROI.
- reversionary annuity — an annuity payable to a beneficiary during the period of time he or she survives the insured.
- rheumatoid arthritis — a chronic autoimmune disease characterized by inflammation of the joints, frequently accompanied by marked deformities, and ordinarily associated with manifestations of a general, or systemic, affliction.
- ring of the nibelung — Richard Wagner's tetralogy of music dramas: Das Rheingold (completed 1869), Die Walküre (completed 1870), Siegfried (completed 1876), and Götterdämmerung (completed 1876): the cycle was first performed at Bayreuth, 1876.
- ring wall foundation — A ring wall foundation is a base made of concrete, used to put large tanks on.
- 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.
- rocky mountain sheep — bighorn.
- roller-blind shutter — curtain shutter.
- rotations per minute — revolutions per minute
- rub sb's nose in sth — To rub someone's nose in something that they do not want to think about, such as a failing or a mistake they have made, means to remind them repeatedly about it.
- ruby-crowned kinglet — an olive-gray, American kinglet, Regulus calendula, the male of which has an erectile, ruby crest.
- run-time environment — (operating system) A collection of subroutines and environment variables that provide commonly used functions and data for a program while it is running. Compare run-time support.
- saint john ambulance — an organization that provides first aid and first-aid training
- saint thomas aquinas — Saint, Aquinas, Saint Thomas.
- santa cruz operation — (SCO) A supplier of Unix systems for Intel microprocessors. They supply Xenix and Open Desktop. Founded in 1979, SCO became a public company in May, 1993 and trades on the Nasdaq National Market System under the symbol SCOC. SCO maintains its world headquarters in Santa Cruz, California, USA; a European headquarters in Watford, England; a Government Systems Group in Reston, Virginia; and offices in Asia, Australia, Canada, Latin America, and throughout Europe and the United States. In February 1993, SCO acquired IXI Limited of Cambridge, England, the leading supplier of Unix System windowing software.
- scatter site housing — public housing, especially for low-income families, built throughout an urban area rather than being concentrated in a single neighborhood.
- school without walls — a nontraditional educational program that uses community facilities as learning resources.
- schrodinger equation — the wave equation of nonrelativistic quantum mechanics. Also called Schrödinger wave equation. Compare wave equation (def 2).
- secure accommodation — an institution where young offenders are kept in custody
- security association — (networking) The relationship between two or more entities (typically, a computer, but could be a user on a computer, or software component) which describes how the entities will use security services, such as encryption, to communicate. See RFC 1825.
- semiautobiographical — pertaining to or being a fictionalized account of an author's own life.
- settle accounts with — to pay or receive a balance due
- shareholders' equity — Shareholders' equity is the total amount of ownership investment in a company.
- shifting cultivation — a land-use system, esp in tropical Africa, in which a tract of land is cultivated until its fertility diminishes, when it is abandoned until this is restored naturally
- shoulder-length hair — hair that reaches a person's shoulders
- size-weight illusion — a standard sense illusion that a small object is heavier than a large object of the same weight
- slip through the net — If criminals slip through the net, they avoid being caught by the system or trap that was meant to catch them.
- snow-on-the-mountain — a North American euphorbiaceous plant, Euphorbia marginata, having white-edged leaves and showy white bracts surrounding small flowers
- social security card — a card that contains details of a person's social security number
- sodium fluoroacetate — a white, amorphous, water-soluble, poisonous powder, C 2 H 2 FO 2 Na, used as a rodenticide.
- sodium meta-arsenite — sodium arsenite.
- sodium metabisulfite — Sodium metabisulfite is a crystalline compound used as an antioxidant.
- soft gelatin capsule — A soft gelatin capsule is a type of capsule that is usually used to contain medicine in the form of liquid or powder, and which dissolves more quickly than a hard gelatin capsule.