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18-letter words containing p, r, e, u, a

  • reciprocating pump — A reciprocating pump is a pump which uses a backward and forward movement to move a fluid.
  • redundancy payment — a sum of money given by an employer to an employee who has been made redundant: usually calculated on the basis of the employee's rate of pay and length of service
  • regular expression — 1.   (text, operating system)   (regexp, RE) One of the wild card patterns used by Perl and other languages, following Unix utilities such as grep, sed, and awk and editors such as vi and Emacs. Regular expressions use conventions similar to but more elaborate than those described under glob. A regular expression is a sequence of characters with the following meanings (in Perl, other flavours vary): An ordinary character (not one of the special characters discussed below) matches that character. A backslash (\) followed by any special character matches the special character itself. The special characters are: "." matches any character except newline; "RE*" (where RE is any regular expression and the "*" is called the "Kleene star") matches zero or more occurrences of RE. If there is any choice, the longest leftmost matching string is chosen. "^" at the beginning of an RE matches the start of a line and "$" at the end of an RE matches the end of a line. (RE) matches whatever RE matches and \N, where N is a digit, matches whatever was matched by the RE between the Nth "(" and its corresponding ")" earlier in the same RE. Many flavours use \(RE\) instead of just (RE). The concatenation of REs is a RE that matches the concatenation of the strings matched by each RE. RE1 | RE2 matches whatever RE1 or RE2 matches. \< matches the beginning of a word and \> matches the end of a word. Many flavours use "\b" instead as the special character for "word boundary". RE{M} matches M occurences of RE. RE{M,} matches M or more occurences of RE. RE{M,N} matches between M and N occurences. Other flavours use RE\{M\} etc. Perl provides several "quote-like" operators for writing REs, including the common // form and less common ??. A comprehensive survey of regexp flavours is found in Friedl 1997 (see below). 2. Any description of a pattern composed from combinations of symbols and the three operators: Concatenation - pattern A concatenated with B matches a match for A followed by a match for B. Or - pattern A-or-B matches either a match for A or a match for B. Closure - zero or more matches for a pattern. The earliest form of regular expressions (and the term itself) were invented by mathematician Stephen Cole Kleene in the mid-1950s, as a notation to easily manipulate "regular sets", formal descriptions of the behaviour of finite state machines, in regular algebra.
  • repayment schedule — a document detailing the specific terms of a borrower's loan, such as monthly payment, interest rate, due dates etc
  • resurrection plant — a desert plant, Selaginella lepidophylla, occurring from Texas to South America, having stems that curl inward when dry.
  • russo-japanese war — the war (1904–1905) between Russia and Japan.
  • sampling frequency — sample rate
  • scripting language — a language that is used to write scripts, or executable sections of code that automate tasks.
  • sea-level pressure — the atmospheric pressure, at any elevation, reduced by formula to a value approximating the pressure at sea level.
  • self-preoccupation — the state of being preoccupied.
  • separate but equal — pertaining to a racial policy, formerly practiced in some parts of the United States, by which black people could be segregated if granted equal opportunities and facilities, as for education, transportation, or jobs.
  • shunting operation — an operation in which rail coaches are manoeuvred
  • simple enumeration — a procedure for arriving at empirical generalizations by haphazard accumulation of positive instances.
  • sound spectrograph — an electronic device for recording a sound spectogram.
  • spare-part surgery — surgical replacement of defective or damaged organs by transplant or insertion of artificial devices
  • speak for yourself — If you say 'Speak for yourself' when someone has said something, you mean that what they have said is only their opinion or applies only to them.
  • special prosecutor — (formerly) an independent counsel.
  • specimen signature — a signature to be compared to an original signature in order to verify someone's identity
  • st. peter's square — a square surrounded by colonnades, forming a boundary of and an entrance to Vatican City, leading to St. Peter's: designed by Giovanni Bernini and built during the 17th century.
  • stroustrup, bjarne — Bjarne Stroustrup
  • sturt's desert pea — the desert pea
  • subatomic particle — physics:
  • summary proceeding — a mode of trial authorized by statute to be held before a judge without the usual full hearing.
  • super giant slalom — a slalom race in which the course is longer and has more widely spaced gates than in a giant slalom.
  • super royal octavo — a book size, 63⁄4 by 101⁄4 inches
  • super royal quarto — a book size, 101⁄4 by 131⁄2 inches
  • superciliary ridge — browridge.
  • superior vena cava — See under vena cava.
  • supporting actress — an actress playing a supporting role
  • supportive therapy — any treatment, such as the intravenous administration of certain fluids, designed to reinforce or sustain the physiological well-being of a patient
  • supraorbital ridge — browridge.
  • surgical appliance — a specialized device used by somebody to relieve a particular medical condition
  • surveyor's compass — an instrument used by surveyors for measuring azimuths.
  • temporal summation — the act or process of summing.
  • territory of papua — a former territory of Australia, consisting of SE New Guinea and adjacent islands: now part of Papua New Guinea
  • the baptist church — any of various Protestant churches that believe in the baptism of believers
  • the general public — the people in a society; people in general
  • to hold your peace — If you hold or keep your peace, you do not speak, even though there is something you want or ought to say.
  • to open your heart — If you open your heart or pour out your heart to someone, you tell them your most private thoughts and feelings.
  • to play favourites — to display favouritism
  • to put years on sb — if you say that something such as an experience or a way of dressing has put years on someone, you mean that it has made them look or feel much older
  • to speak your mind — If you speak your mind, you say firmly and honestly what you think about a situation, even if this may offend or upset people.
  • to watch your step — If someone tells you to watch your step, they are warning you to be careful about how you behave or what you say so that you do not get into trouble.
  • truck center plate — one of a pair of plates that fit together and support the body of a car on a truck, while allowing the truck to rotate with respect to the body. One plate (body center plate) is attached to the underside of the car body and the other (truck center plate) is part of the car truck.
  • under-compensation — to compensate or pay less than is fair, customary, or expected.
  • under-depreciation — decrease in value due to wear and tear, decay, decline in price, etc.
  • unfair competition — acts done by a seller to confuse or deceive the public with intent to acquire a larger portion of the market, as by cutting prices below cost, misleading advertising, selling a spurious product under a false identity, etc.
  • universal coupling — a coupling between rotating shafts set at an angle to one another, allowing for rotation in three planes.
  • upper klamath lake — See under Klamath Lakes.
  • upper middle class — wealthy, highly-educated people
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