20-letter words containing p, e, r, f, c
- a repeat performance — If there is a repeat performance of something, usually something undesirable, it happens again.
- application software — software designed for a specific need or purpose
- artificial pacemaker — an electronic device for use in certain cases of heart disease to assume the functions of the natural cardiac pacemaker
- calculus of pleasure — (in utilitarianism) appraisal of possible alternative choices in terms of the amount of pleasure to be gained and pain to be avoided in each.
- cape prince of wales — a cape in W Alaska, on the Bering Strait opposite the coast of the extreme northeast of Russia: the westernmost point of North America
- capital transfer tax — (in Britain) a tax payable from 1974 to 1986 at progressive rates on the cumulative total of gifts of money or property made during the donor's lifetime or after his death. It was replaced by inheritance tax
- catastrophic failure — Catastrophic failure is sudden and complete failure which cannot be put right.
- center of percussion — the point on a rigid body, suspended so as to be able to move freely about a fixed axis, at which the body may be struck without changing the position of the axis.
- centrifugal spinning — the spinning of rayon filaments in a centrifugal box.
- chapter of accidents — a series of misfortunes
- chemical fingerprint — a distinctive characteristic or pattern indicating the presence of a certain molecule, used to identify a chemical.
- chief superintendent — an officer of senior rank in a British police force or other similarly organized force
- conferencing over ip — (communications, standard) (CoIP) Standards for the transmission of multimedia over the Internet. CoIP extends VoIP (voice over Internet Protocol) with text, images, video. The main CoIP standard is based on H.323. The VoIP forum of the IMTC merged with the H.323 Activity Group in January 1999 to form the Conferencing over IP (CoIP) Activity Group. VoIP uses "VoIP Devices" as gateways to route voice data packets over the Internet or PSTN. Protocols such as SGCP and its successor MGCP extend VoIP to handle media other than voice data.
- conformal projection — a map projection in which angles formed by lines are preserved: a map made using this projection preserves the shape of any small area.
- contempt of congress — contempt of a U.S. Congressional body, as of an investigating committee, shown by a witness summoned or appearing before it.
- counterproliferation — Action intended to prevent an increase or spread in the possession of nuclear weapons.
- craft apprenticeship — a period of training for a skilled trade in industry, such as for a plumber or electrician
- cream of tomato soup — a creamy soup made from tomatoes
- darkfield microscope — kind of microscope
- definite description — a description that is modified by the definite article or a possessive, such as the woman in white or Rosemary's baby
- difference amplifier — A difference amplifier is a device that amplifies the difference between two inputs, rejecting any signals common to both.
- differential pricing — a situation in which different prices are charged for the same product or service
- due process (of law) — the course of legal proceedings established by the legal system of a nation or state to protect individual rights
- ecological footprint — a mark left by the shod or unshod foot, as in earth or sand.
- efficiency apartment — a small apartment consisting typically of a combined living room and bedroom area, a bathroom, and a kitchenette.
- electronic footprint — data that identifies a computer that has connected to a particular website
- european social fund — one of the four Structural Funds of the European Union which aims to support employment and the economic and social well-being of EU member countries
- father of the chapel — (in British trade unions in the publishing and printing industries) a shop steward
- feather in one's cap — one of the horny structures forming the principal covering of birds, consisting typically of a hard, tubular portion attached to the body and tapering into a thinner, stemlike portion bearing a series of slender, barbed processes that interlock to form a flat structure on each side.
- field ion microscope — a device in which the atomic structure of the surface of a conductor is made visible by introducing helium gas into the device and applying a high voltage to ionize and accelerate the gas toward a fluorescent screen.
- field-ion microscope — a device in which the atomic structure of the surface of a conductor is made visible by introducing helium gas into the device and applying a high voltage to ionize and accelerate the gas toward a fluorescent screen.
- file descriptor leak — (programming) (Or "fd leak" /F D leek/) A kind of programming bug analogous to a core leak, in which a program fails to close file descriptors ("fd"s) after file operations are completed, and thus eventually runs out of them. See leak.
- fixed action pattern — a highly stereotyped pattern of behavior that is characteristic of a particular species.
- fixed-price contract — a contract in which the price is preset and invariable, regardless of the actual costs of production.
- flame-fusion process — Verneuil process.
- flat-plate collector — a type of solar collector consisting of a series of flat glass or plastic plates with black metal surfaces that absorb solar energy.
- floodlight projector — a powerful lamp having a reflector curved to produce a floodlight.
- freefall parachuting — a variety of parachuting in which the jumper manoeuvres in free fall before opening the parachute
- frontenac et palluau — Comte de (Louis de Buade) 1620?–98, French governor of New France 1672–82, 1689–98.
- fundamental particle — elementary particle.
- group life insurance — a form of life insurance available to members of a group, typically employees of a company, under a master policy.
- imperfect contrition — sincere penitence or remorse.
- instruction prefetch — (architecture) A technique which attempts to minimise the time a processor spends waiting for instructions to be fetched from memory. Instructions following the one currently being executed are loaded into a prefetch queue when the processor's external bus is otherwise idle. If the processor executes a branch instruction or receives an interrupt then the queue must be flushed and reloaded from the new address. Instruction prefetch is often combined with pipelining in an attempt to keep the pipeline busy. By 1995 most processors used prefetching, e.g. Motorola 680x0, Intel 80x86.
- interference pattern — a series of alternating dark and bright bands produced as a result of light interference.
- keep a straight face — look serious, avoid smiling
- life-support machine — A life-support machine is the equipment that is used to keep a person alive when they are very ill and cannot breathe without help.
- liquidity preference — (in Keynesian economics) the degree of individual preference for cash over less liquid assets.
- lost property office — room for mislaid objects
- member of the public — a member of the general population
- mother of the chapel — (in British trade unions in the publishing and printing industries) a woman shop steward
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