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18-letter words containing a, n, g, l, o

  • psychogalvanometer — a type of galvanometer for detecting and measuring psychogalvanic currents.
  • publishing company — a firm which publishes books
  • racial segregation — social policy: separation of races
  • ragtag and bobtail — the riffraff; rabble: The ragtag and bobtail of every nation poured into the frontier in search of gold.
  • range of stability — the angle to the perpendicular through which a vessel may be heeled without losing the ability to right itself.
  • reggio nell'emilia — a city in N Italy.
  • regional enteritis — Crohn's disease.
  • 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.
  • regular hexahedron — a solid cube with six square faces
  • 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.
  • reprocessing plant — a plant where materials are treated in order to make them reusable
  • reverse angle shot — Movies. reverse shot.
  • 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.
  • rotational molding — a method for molding hollow plastic objects by placing finely divided particles in a hollow mold that is rotated about two axes, exposing it to heat and then to cold.
  • rule of engagement — a directive issued by a military authority controlling the use and degree of force, especially specifying circumstances and limitations for engaging in combat.
  • safety regulations — regulations or rules that are put in place to ensure a product, event, etc, is safe and not dangerous
  • school-leaving age — the minimum age that children are legally allowed to leave school - in Britain and the United States, this is 16
  • seafloor spreading — a process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads out.
  • seagate technology — (company)   A major manufacturer of hard disk drives, founded in 1979 as "Shugart Technology" by Alan F. Shugart and Finis Conner. That name is on the original patents for the 5.25" hard disk drive. They changed the name to Seagate Technology soon after to avoid confusion, and also to avoid friction with Xerox, which had since purchased Alan's earlier company, Shugart Associates. Address: 920 Disc Drive, Scotts Valley, CA 95066, USA. Fax: +1 (408) 438 3320.
  • secondary diagonal — a diagonal line or plane.
  • segmental phonemes — phonemes consisting of sound segments; hence, the vowel, consonant, and semivowel sounds of a language
  • self-glorification — a glorified or more splendid form of something.
  • self-gratification — the act of pleasing or satisfying oneself, especially the gratifying of one's own impulses, needs, or desires.
  • self-interrogation — the act of interrogating; questioning.
  • self-raising flour — flour with baking powder
  • seven-league boots — mythical boots that allowed the wearer to travel seven leagues (a former unit of measurement), ie a great length, at each step
  • shugart technology — Seagate Technology
  • significant symbol — a verbal or nonverbal gesture, as a word or smile, that has acquired a conventionalized meaning.
  • sleeping policeman — a bump built across roads, esp in housing estates, to deter motorists from speeding
  • social bookmarking — the practice of saving bookmarked Web pages to a public website as a way to share the links with other Internet users: Social bookmarking is a tool that allows you to add tags and comments to your bookmarks.
  • social engineering — the application of the findings of social science to the solution of actual social problems.
  • societal marketing — marketing that takes into account society's long-term welfare
  • sociotechnological — of, relating to, or signifying the combination or interaction of social and technological factors.
  • soft touch sealing — Soft touch sealing is a copolymer seal for a tank, with characteristics designed for softness, used instead of a metal seal to help avoid fire when sparks are generated.
  • solemn (high) mass — a highly ceremonial Mass with parts of the text sung by the celebrant, with a deacon and subdeacon assisting at the ceremonies, and with choir singing and organ music
  • solid-fuel heating — heating that uses solid fuel, such as coal or coke
  • spackling compound — spackle
  • standard of living — a grade or level of subsistence and comfort in everyday life enjoyed by a community, class, or individual: The well-educated generally have a high standard of living.
  • stepping-off place — jumping-off place (def 2).
  • stinking chamomile — mayweed.
  • stirling's formula — a relation that approximates the value of n factorial (n!), expressed as .
  • strait of magellan — a strait between the mainland of S South America and Tierra del Fuego, linking the S Pacific with the S Atlantic. Length: 600 km (370 miles). Width: up to 32 km (20 miles)
  • strathclyde region — a former local government region in W Scotland: formed in 1975 from Glasgow, Renfrewshire, Lanarkshire, Buteshire, Dunbartonshire, and parts of Argyllshire, Ayrshire, and Stirlingshire; replaced in 1996 by the council areas of Glasgow, Renfrewshire, East Renfrewshire, Inverclyde, North Lanarkshire, South Lanarkshire, Argyll and Bute, East Dunbartonshire, West Dunbartonshire, North Ayrshire, South Ayrshire, and East Ayrshire
  • sugarloaf mountain — a mountain in SE Brazil in Rio de Janeiro, at the entrance to Guanabara Bay. 1280 feet (390 meters).
  • super giant slalom — a slalom race in which the course is longer and has more widely spaced gates than in a giant slalom.
  • take to one's legs — to run away
  • telephone exchange — a telecommunications facility to which subscribers' telephones connect, that switches calls among subscribers or to other exchanges for further routing.
  • tender loving care — considerate and kindly care, as of someone who is ill, upset, etc
  • the electronic age — the electronic age began when electronic equipment, including computers came into use
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