21-letter words containing o, p, e, r
- a nasty piece of work — If you say that someone is a nasty piece of work, you mean that they are very unkind or unpleasant.
- a rap on the knuckles — If someone in authority gives you a rap on the knuckles, they criticize you or blame you for doing something they think is wrong.
- a recipe for disaster — If you say that something is a recipe for disaster, you mean that it is very likely to have unpleasant consequences.
- absorption hygrometer — a hygrometer that uses a hygroscopic chemical to absorb atmospheric moisture.
- accounting procedures — an established way of keeping company accounts
- active record pattern — (programming) Martin Fowler's name for object relational mapping viewed as a software architecture pattern.
- aerospace engineering — the branch of engineering that deals with the design, development, testing, and production of aircraft and related systems (aeronautical engineering) and of spacecraft, missiles, rocket-propulsion systems, and other equipment operating beyond the earth's atmosphere (astronautical engineering)
- afternoon performance — a performance during the afternoon, rather than the evening
- airborne command post — any of several converted commercial aircraft equipped with special communications and code gear, intended as flying bunkers for the president, secretary of defense, military commanders, or their designated replacements.
- alexander archipelago — a group of over 1000 islands along the coast of SE Alaska
- algorithm description — (language) (ALDES) ["The Algorithm Description Language ALDES", R.G.K. Loos, SIGSAM Bull 14(1):15-39 (Jan 1976)].
- alliance for progress — a program of foreign aid presented by President Kennedy to help solve the economic and social problems of Latin America.
- angle of polarization — the law that light will receive maximum polarization from a reflecting surface when it is incident to the surface at an angle (angle of polarization or polarizing angle) having a tangent equal to the index of refraction of the surface.
- antarctic archipelago — a group of islands in the South Atlantic Ocean, off the NW coast of the Antarctic Peninsula.
- antihemophilic factor — a protein that is essential to normal blood clotting and is lacking or deficient in persons having hemophilia A. Abbreviation: AHF.
- apothecaries' measure — a system of liquid volume measure used in pharmacy in which 60 minims equal 1 fluid drachm, 8 fluid drachms equal 1 fluid ounce, and 20 fluid ounces equal 1 pint
- appellation controlee — a designation on the label of certain French wines, brandies, etc. guaranteeing that the contents meet established standards, as type of grape and location of vineyard
- appendicular skeleton — the girdles and skeleton of the limbs
- application developer — (job) Someone who does application development.
- applications software — application program
- assisted reproduction — the use of medical techniques to bring about the conception and birth of a child, including artificial insemination, in vitro fertilization, egg and embryo donation, and drug therapy.
- atmospheric inversion — inversion (def 12).
- atmospheric-inversion — an act or instance of inverting.
- axial-flow compressor — a device for compressing a gas by accelerating it tangentially by means of bladed rotors, to increase its kinetic energy, and then diffusing it through static vanes (stators), to increase its pressure
- background processing — the ability of a system to perform a low-priority task while, at the same time, dealing with a main application
- background projection — the projection from the rear of previously photographed material on a translucent screen, used as background for a television or motion-picture shot.
- barbiturate poisoning — poisoning caused by overdose of a barbiturate
- barrier contraceptive — any form of contraceptive that prevents impregnation by physically preventing the sperm from reaching the egg
- be in apple-pie order — If a room or a desk is in apple pie order, it is neat and tidy, and everything is where it should be.
- bernoulli's principle — the principle that in a liquid flowing through a pipe the pressure difference that accelerates the flow when the bore changes is equal to the product of half the density times the change of the square of the speed, provided friction is negligible
- blow your own trumpet — If you blow your own trumpet or blow your own horn, you tell people that you are very clever or successful.
- bluethroat pikeblenny — See under pikeblenny.
- bonnie prince charlie — a member of the royal family that ruled in Scotland from 1371 to 1714 and in England from 1603 to 1714.
- book of common prayer — the official book of church services of the Church of England, until 1980, when the Alternative Service Book was sanctioned
- breath-of-life packet — (XEROX PARC) An Ethernet packet that contains bootstrap code, periodically sent out from a working computer to infuse the "breath of life" into any computer on the network that has crashed. Computers depending on such packets have sufficient hardware or firmware code to wait for (or request) such a packet during the reboot process. See also dickless workstation. The notional "kiss-of-death packet", with a function complementary to that of a breath-of-life packet, is recommended for dealing with hosts that consume too many network resources. Though "kiss-of-death packet" is usually used in jest, there is at least one documented instance of an Internet subnet with limited address-table slots in a gateway computer in which such packets were routinely used to compete for slots, rather like Christmas shoppers competing for scarce parking spaces.
- bromine pentafluoride — a colorless, corrosive liquid, BrF 5 , used as an oxidizer in liquid rocket propellants.
- buffalo carpet beetle — any of several small beetles of the family Dermestidae, the larvae of which are household pests, feeding on rugs and other woolen fabrics, especially Anthrenus scrophulariae (buffalo carpet beetle) and Attagenus piceus (black carpet beetle)
- butterfly common lisp — A parallel version of Common LISP for the BBN Butterfly computer.
- byte-code interpreter — (software) A program that executes a byte code program. An example is the Java Virtual Machine.
- central european time — the standard time adopted by Western European countries one hour ahead of Greenwich Mean Time, corresponding to British Summer Time
- character development — the portrayal of people in a work of fiction in such a way that the reader or audience seems to learn more about them as they develop
- charge-coupled device — an electronic device, used in imaging and signal processing, in which information is represented as packets of electric charge that are stored in an array of tiny closely spaced capacitors and can be moved from one capacitor to another in a controlled way
- charterhouse of parma — a novel (1839) by Stendhal.
- college of propaganda — information, ideas, or rumors deliberately spread widely to help or harm a person, group, movement, institution, nation, etc.
- combination principle — Ritz combination principle.
- committal proceedings — a preliminary hearing in a magistrates' court to decide if there is a case to answer
- companionate marriage — a proposed system of trial marriage in which the couple would postpone having children and could be divorced by mutual consent, until a final decision to stay married is reached
- comparative philology — comparative linguistics.
- comparative statement — a financial statement with figures arranged in two or more parallel columns, each column representing a fiscal year or other period, used to compare performance between periods.
- comparison microscope — a microscope having two objective lenses and using a system of prisms to form in one eyepiece adjacent images of two different objects.
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