18-letter words containing g, o, l, i, n
- plate-glass window — a window that has glass which has been formed by rolling
- plight one's troth — to make a promise of marriage
- point d'angleterre — a bobbin lace in which the design is worked out with either a needle or bobbin.
- point set topology — topology (def 2).
- point-bearing pile — a pile depending on the soil or rock beneath its foot for support.
- pontifical college — the chief body of priests in ancient Rome.
- population figures — population totals; statistics relating to the size of populations
- potential gradient — the rate of change of potential with respect to distance in the direction of greatest change.
- prerelease showing — a showing of a film before it goes on general release
- primate of england — a title of the archbishop of Canterbury.
- principal diagonal — a diagonal line or plane.
- process scheduling — multitasking
- programme planning — the act of creating plans or schedules, esp in relation to your occupation
- programming skills — the skills required to write a program so that data may be processed by a computer
- psychotechnologist — a specialist in psychotechnology
- 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.
- reentering polygon — a polygon having one or more reentering angles.
- 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.
- 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
- 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.
- safety regulations — regulations or rules that are put in place to ensure a product, event, etc, is safe and not dangerous
- schleswig-holstein — two contiguous duchies of Denmark that were a center of international tension in the 19th century: Prussia annexed Schleswig 1864 and Holstein 1866.
- school of motoring — a centre where people pay for lessons to learn to drive
- 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.
- secondary diagonal — a diagonal line or plane.
- self-comprehending — to understand the nature or meaning of; grasp with the mind; perceive: He did not comprehend the significance of the ambassador's remark.
- 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
- senior high school — a school attended after junior high school and usually consisting of grades 10 through 12.
- 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
- slim hole drilling — Slim hole drilling is drilling a well in which at least 90 percent of the hole has a diameter of seven inches or less.
- sling psychrometer — a psychrometer so designed that the wet-bulb thermometer can be ventilated, to expedite evaporation, by whirling in the air.
- slip of the tongue — If you describe something you said as a slip of the tongue, you mean that you said it by mistake.
- 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.