19-letter words containing e, p, l, u, r
- agner krarup erlang — (person) (1878-1929) A Danish mathematician. Erlang the language and unit were named after him. Interested in the theory of probability, in 1908 Erlang joined the Copenhagen Telephone Company where he studied the problem of waiting times for telephone calls. He worked out how to calculate the fraction of callers who must wait due to all the lines of an exchange being in use. His formula for loss and waiting time was published in 1917. It is now known as the "Erlang formula" and is still in use today.
- alpha ursae minoris — Polaris
- ancillary equipment — Ancillary equipment is machines and other technical things which are used with the main items of equipment to create a complete system.
- antarctic peninsula — the largest peninsula of Antarctica, between the Weddell Sea and the Pacific: consists of Graham Land in the north and the Palmer Peninsula in the south
- apollonius of perga — ?261–?190 bc, Greek mathematician, remembered for his treatise on conic sections
- apres moi le deluge — after me the deluge
- auricular appendage — auricle (def 1b).
- auricular-appendage — Anatomy. the projecting outer portion of the ear; pinna. Also called auricular appendage. an ear-shaped appendage projecting from each atrium of the heart. (loosely) the atrium.
- below par/under par — If you feel below par or under par, you feel tired and unable to perform as well as you normally do.
- bernoulli principle — (Or "air foil principle", after Swiss mathematician Daniel Bernoulli, 1700-1782) The law that pressure in a fluid decreases with the rate of flow. It has been applied to a class of hard disk drives. See Bernoulli Box.
- beta-naphthyl group — See under naphthyl.
- blood pressure cuff — A blood pressure cuff is a medical device consisting of a piece of rubber or similar material that is wrapped around a patient's arm and then inflated in order to measure their blood pressure.
- blue-ringed octopus — a highly venomous octopus, Octopus maculosus, of E Australia which exhibits blue bands on its tentacles when disturbed
- brightline spectrum — the spectrum of an incandescent substance appearing on a spectrogram as one or more bright lines against a dark background.
- brush-tailed possum — any of several widely-distributed Australian possums of the genus Trichosurus
- calculate a premium — If you calculate a premium, you decide how much a policyholder has to pay for insurance cover.
- camouflage passport — a passport from a non-existent country intended to conceal the bearer's true nationality (from hijackers, kidnappers, etc)
- campernelle jonquil — a narcissus, Narcissus odorus, of the amaryllis family, having clusters of two to four fragrant yellow flowers.
- canterbury pilgrims — the pilgrims whose stories are told in Chaucer's Canterbury Tales
- cape york peninsula — large peninsula in NE Australia, part of Queensland, between the Gulf of Carpentaria & the Coral Sea
- capital expenditure — expenditure on acquisitions of or improvements to fixed assets
- cerebrospinal fluid — the clear colourless fluid in the spaces inside and around the spinal cord and brain
- chemolithoautotroph — (biology) A chemoautotroph or lithoautotroph.
- columnar epithelium — epithelium consisting of one or more layers of elongated cells of cylindrical or prismatic shape.
- complete quadrangle — a plane figure consisting of four points connected by six lines
- compromise solution — a solution to a problem reached by compromise
- compulsory purchase — purchase of a house or other property by a local authority or government department for public use or to make way for development, regardless of whether or not the owner wishes to sell
- computer peripheral — a device that is attached to and controlled by a computer, such as a scanner, printer, or external hard drive
- computer simulation — an event, process, or scenario that is created on a computer
- computer-controlled — controlled by computers, esp without direct human intervention
- consultation period — a period during which consultations are held before a policy decision is made
- corporal punishment — Corporal punishment is the punishment of people by hitting them.
- counterproductively — In a counterproductive way.
- credit default swap — a contract in which the parties exchange the exposure to loss should a creditor fail to make a payment when it comes due back
- creeping cinquefoil — any of several plants belonging to the genus Potentilla, of the rose family, having yellow, red, or white five-petaled flowers, as P. reptans (creeping cinquefoil) of the Old World, or P. argentea (silvery cinquefoil) of North America.
- cult of personality — a cult promoting adulation of a living national leader or public figure, as one encouraged by Stalin to extend his power.
- developable surface — a surface that can be flattened onto a plane without stretching or compressing any part of it, as a circular cone.
- differential backup — (operating system) A kind of backup that copies all files that have changed since the last full backup. Each differential backup will include all files in previous differential backups since the full backup so to restore a version of a file, you only need to search the full backup and the relevant differential backup. Some systems support differential backup by associating an "Archive" flag with each file and setting this flag whenever the file is modified to indicate that it should be included in the next backup. A differential backup does not change this flag, whereas an incremental backup resets it.
- directional coupler — (communications) (tap) A passive device used in cable systems to divide and combine radio frequency signals. A directional coupler has at least three ports: line in, line out, and the tap. The signal passes between line in and line out ports with loss referred to as the insertion loss. A small portion of the signal power applied to the line in port passes to the tap port. A signal applied to the tap port is passed to the line in port less the tap attenuation value. The tap signals are isolated from the line out port to prevent reflections. A signal applied to the line out port passes to the line in port and is isolated from the tap port. Some devices provide more than one tap output line (multi-taps).
- double counterpoint — invertible counterpoint using two transposable voices.
- early purple orchid — a Eurasian orchid, Orchis mascula, with purplish-crimson flowers and stems marked with blackish-purple spots
- electron multiplier — a device for amplifying and measuring a flux of electrons. Each electron hits an anode surface and releases secondary electrons that are accelerated to a second surface; after several such stages a measurable pulse of current is obtained
- electrotherapeutics — (medicine) the use of electricity in therapeutics.
- employment tribunal — (in England, Scotland, and Wales) a tribunal that rules on disputes between employers and employees regarding unfair dismissal, redundancy, etc
- equal opportunities — Equal opportunities refers to the policy of giving everyone the same opportunities for employment, pay and promotion, without discriminating against particular groups.
- european parliament — law: assembly in Strasbourg
- exclusion principle — Pauli exclusion principle
- executive privilege — Executive privilege is the right that a member of the executive branch of government has to withhold information about matters that they consider to be confidential.
- finger on the pulse — If you have your finger on the pulse of something, you know all the latest opinions or developments concerning it.
- first person plural — a grammatical category of pronouns and verbs used by the speaker to refer to or talk about himself together with others
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