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18-letter words containing n, a, i

  • reactive component — the component in an alternating-current circuit that does not contribute power because it is 90° out of phase with the voltage or current.
  • recess appointment — a person appointed to an office by the President of the United States without approval from the Senate because the Senate is in recess
  • recharacterization — portrayal; description: the actor's characterization of a politician.
  • reciprocating pump — A reciprocating pump is a pump which uses a backward and forward movement to move a fluid.
  • reconnaissance car — a specially equipped and armed car used for making military reconnaissance.
  • recovery operation — the process of locating and retrieving bodies, esp following an explosion or natural disaster
  • recruitment agency — company that places job candidates
  • reduction strategy — (theory)   An algorithm for deciding which redex(es) to reduce next. Different strategies have different termination properties in the presence of recursive functions or values. See string reduction, normal order reduction, applicative order reduction, parallel reduction
  • reggio nell'emilia — a city in N Italy.
  • regional enteritis — Crohn's disease.
  • registered company — a company which has officially registered its business
  • registration plate — a plate mounted on the front and back of a motor vehicle bearing the registration number
  • 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.
  • reinforced plastic — plastic with fibrous matter, such as carbon fibre, embedded in it to confer additional strength
  • reinsurance treaty — A reinsurance treaty is a contract that defines the terms of reinsurance business.
  • relational algebra — (database, theory)   A family of algebra with a well-founded semantics used for modelling the data stored in relational databases, and defining queries on it. The main operations of the relational algebra are the set operations (such as union, intersection, and cartesian product), selection (keeping only some lines of a table) and the projection (keeping only some columns). The relational data model describes how the data is structured.
  • relative frequency — the ratio of the number of times an event occurs to the number of occasions on which it might occur in the same period.
  • relative minor key — a minor key that has the same key signature as a major key, but a different tonic
  • remains to be seen — If you say that it remains to be seen whether something will happen, you mean that nobody knows whether it will happen.
  • remanent magnetism — magnetization in minerals induced by a former magnetic field and persisting after the field changes.
  • renter's insurance — Renter's insurance is insurance for renters to insure their property against loss.
  • replacement engine — an engine used to replace or substitute an older or broken engine (in a vehicle, etc)
  • report an accident — If you report an accident, you inform an insurer or the police or other authorities that an accident has occurred.
  • representativeness — a person or thing that represents another or others.
  • reprocessing plant — a plant where materials are treated in order to make them reusable
  • rescind a contract — If an insurer rescinds an insurance contract, it terminates it because facts have been concealed or misrepresented by the proposer.
  • research assistant — a graduate who is employed on a temporary or part-time basis to assist the university with academic research
  • research scientist — someone who conducts scientific research or investigation, in order to discover new things, etc
  • research-intensive — focusing financial and other resources on research and development as opposed to capital and labor; noting or pertaining to a high ratio of expenditure on research in relation to the value of net output.
  • residential school — (in Canada) a boarding school maintained by the Canadian government for Indian and Inuit children from sparsely populated settlements
  • residual magnetism — remanence.
  • resistance fighter — someone who fights (for freedom, etc) against an invader in an occupied country, or against their government, etc, often secretly or illegally
  • resistance plasmid — any of a group of bacterial plasmids carrying genetic information that provide resistance to antibiotic drugs: some resistance plasmids are able to transfer themselves, and hence resistance, during conjugation
  • resistance welding — welding utilizing pressure and heat that is generated in the pieces to be welded by resistance to an electric current.
  • restoration comedy — English comedy of the period of the Restoration, stressing manners and social satire.
  • restraining circle — any of three circles on the floor of a basketball court used for jump balls: other players must remain outside the circle during a jump ball
  • restraint of trade — action tending to interrupt the free flow of goods and services, as by price fixing and other practices that have the effect of reducing competition.
  • resurrection plant — a desert plant, Selaginella lepidophylla, occurring from Texas to South America, having stems that curl inward when dry.
  • resuscitation room — an intensive care unit
  • retail price index — The retail price index is a list of the prices of typical goods which shows how much the cost of living changes from one month to the next.
  • retrograde amnesia — a memory disorder characterized by an inability to remember events or experiences that occurred before a significant point in time.
  • reverberation time — the time it takes for a sound made in a room to diminish by 60 decibels.
  • reversionary bonus — a bonus added to the sum payable on death or at the maturity of a with-profits assurance policy
  • revolutionary wars — American Revolution.
  • rhode island white — one of a dual-purpose American breed of chickens having white feathers and a rose comb.
  • rhyming dictionary — a specialist dictionary organized by the final sounds of words, used to write poetry
  • richard p. feynman — (person, computing, architecture)   /fayn'mn/ 1918-1988. A US physicist, computer scientist and author who graduated from Massachusetts Institute of Technology and Princeton. Feynmane was a key figure in helping Oppenheimer and team develop atomic bomb. In 1950 he became a professor at Caltech and in 1965 became Nobel Prize Laureate in Physics for QED (quantum electrodynamics). He was a primary figure in "solving" the Challenger disaster O-ring problem. He "rediscovered" the former Soviet Socialist Republic of Tuva. The 2001 film "Infinity" about Feynman's early life featured Matthew Broderick and Patricia Arquette. In 2001, "QED", a play about Feynman's life featuring Alan Alda opened.
  • risk based testing — (testing)   Testing based on identification of potential risks (or "candidate risks"), which should be analysed by the project stakeholder or which might appear during the project's development.
  • rolling resistance — The rolling resistance of a wheel or ball is its resistance to movement caused by friction between it and the surface it is rolling on.
  • roman architecture — buildings in style of ancient Rome
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