19-letter words containing e, p, l, u
- double counterpoint — invertible counterpoint using two transposable voices.
- duplicating machine — a duplicator, especially one for making identical copies of documents, letters, etc.
- early purple orchid — a Eurasian orchid, Orchis mascula, with purplish-crimson flowers and stems marked with blackish-purple spots
- eight queens puzzle — (algorithm) A puzzle in which one has to place eight queens on a chessboard such that no queen is attacking any other, i.e. no two queens occupy the same row, column or diagonal. One may have to produce all possible such configurations or just one. It is a common students assignment to devise a program to solve the eight queens puzzle. The brute force algorithm tries all 64*63*62*61*60*59*58*57 = 178,462,987,637,760 possible layouts of eight pieces on a chessboard to see which ones meet the criterion. More intelligent algorithms use the fact that there are only ten positions for the first queen that are not reflections of each other, and that the first queen leaves at most 42 safe squares, giving only 10*42*41*40*39*38*37*36 = 1,359,707,731,200 layouts to try, and so on. The puzzle may be varied with different number of pieces and different size boards.
- 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
- eusebius (pamphili) — a.d. 264?-340; Gr. ecclesiastical historian
- 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.
- facultative apomict — a plant that can reproduce sexually or asexually.
- 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
- fluoride toothpaste — toothpaste containing a small amount of fluoride as protection against tooth decay
- focal plane shutter — an opaque shield in a camera, lying in the focal plane of the lens, that, when tripped, admits light to expose the film or plate for a predetermined period, usually a fraction of a second
- focal-plane shutter — a camera shutter situated directly in front of the film.
- follow-up interview — a second interview following an initial interview
- four eyes principle — the requirement that a business transaction be approved by at least two individuals
- gallipoli peninsula — peninsula in S European Turkey, forming the NW shore of the Dardanelles: c. 55 mi (89 km) long
- gloucester old spot — a hardy rare breed of pig, white with a few black markings, that originally lived off windfalls in orchards in the Severn valley
- go jump in the lake — a body of fresh or salt water of considerable size, surrounded by land.
- ground-plane aerial — a quarter-wave vertical dipole aerial in which the electrical image forming the other quarter-wave section is formed by reflection in a system of radially disposed metal rods or in a conductive sheet
- gulf of carpentaria — a shallow inlet of the Arafura Sea, in N Australia between Arnhem Land and Cape York Peninsula
- gulf of tehuantepec — an inlet of the Pacific on the south coast of the Isthmus of Tehuantepec in S Mexico
- have one's blood up — to be or cause to be angry or inflamed
- hexafluoroplatinate — (chemistry) The univalent anion PtF6- prepared by reacting platinum hexafluoride with certain metals or other elements.
- high blood pressure — elevation of the arterial blood pressure or a condition resulting from it; hypertension. Abbreviation: HBP.
- hold up one's hands — to confess a mistake or misdeed
- house of ill repute — a house of prostitution; whorehouse; brothel.
- housing development — a group of houses or apartments, usually of the same size and design, often erected on a tract of land by one builder and controlled by one management.
- hyperbolic function — a function of an angle expressed as a relationship between the distances from a point on a hyperbola to the origin and to the coordinate axes, as hyperbolic sine or hyperbolic cosine: often expressed as combinations of exponential functions.
- hypersuggestibility — subject to or easily influenced by suggestion.
- imperative language — (language) Any programming language that specifies explicit manipulation of the state of the computer system, not to be confused with a procedural language, which specifies an explicit sequence of steps to perform. An example of an imperative (but non-procedural) language is a data manipulation language for a relational database management system. This specifies changes to the database but does not necessarily require anyone to specify a sequence of steps. Both contrast with declarative languages, which specify neither explicit state manipulation nor a sequence of steps.
- imperial war museum — a museum in London, founded in 1920, containing material related to military operations involving British and Commonwealth forces since 1914
- in particular terms — If you say something in particular terms, you say it using a particular type or level of language or using language which clearly shows your attitude.
- incomplete fracture — a fracture extending partly across the bone.
- isobutyl propionate — a colorless liquid, C 7 H 14 O 2 , used chiefly as a paint, varnish, and lacquer solvent.
- judicial separation — a decree of legal separation of spouses that does not dissolve the marriage bond.
- jumping bristletail — any of several thysanuran insects that live in dark, warm, moist places, as under leaves, bark, and dead tree trunks and along rocky seacoasts, and are active jumpers, making erratic leaps when disturbed.
- jumping plant louse — any of numerous lice, of the family Psyllidae, that feed on plant juices and are sometimes pests of fruits and vegetables.
- kick up one's heels — the back part of the human foot, below and behind the ankle.
- league championship — the competition to become league champions
- leisure occupations — activities which you enjoy and which you perform in your free time
- leukoencephalopathy — (medicine) Any disease that effects the white matter of the brain.
- liaodong pensinsula — a peninsula of NE China, in S Manchuria extending south into the Yellow Sea: forms the S part of Liaoning province
- life-support system — A life-support system is the same as a life-support machine.
- lift up one's voice — to speak out loudly
- lose no opportunity — If you say that someone loses no opportunity to do or say a particular thing, you are emphasizing that they do it or say it whenever it is possible.