18-letter words containing i, x, o, r
- microsoft extended — (computer) (MSX) A Range of computers created in an attempt by the industry to create a standard for home computers, similar to VHS did with home video. The basic MSX machine contained a Z80 CPU working at 3.58MHz. MSX machines were produced by such giants as Sony, Yamaha, Panasonic, Toshiba, Daewoo, and Philips. The MSX standard was designed by a company called ASCII in cooperation with Microsoft who provided a firmware version of its BASIC for the machine. Because this BASIC version was an extended version of MicroSoft Basic, it was called "MicroSoft eXtended BASIC"; Hence "MSX". Microsoft also produced MSX-DOS - a stripped-down version of MS-DOS. Extensions to the MSX included MSX2, MSX2+ and TurboR.
- mixed-flow turbine — a water turbine in which water flows radially and axially through the rotating vanes
- nervous exhaustion — extreme mental and physical fatigue caused by excessive emotional stress; neurasthenia.
- nitrogen tetroxide — a poisonous compound, N 2 O 4 , occurring as a colorless, water-soluble solid or liquid, dissociating into NO 2 : used chiefly as an oxidizer, especially in rocket fuels, as a nitrating agent, and as an intermediate in the manufacture of nitric acid.
- numerical taxonomy — classification of organisms by a comparison of large numbers of observable characteristics that are given equal value instead of being weighted according to possible evolutionary significance.
- operating expenses — Operating expenses are expenses related to carrying out normal business activities.
- over-extrapolation — to infer (an unknown) from something that is known; conjecture.
- ox-tongue partisan — a shafted weapon having a long, wide, tapering blade.
- personal exemption — Your personal exemption is the amount of money that is deducted from your gross income before you have to start paying income tax.
- piperonyl butoxide — a light-brown liquid, C 1 9 H 3 0 O 5 , used chiefly as a synergist in certain insecticides.
- radiation exposure — exposure to radiant energy or to the particles emitted in the transfer of radiant energy, esp the particles and gamma rays emitted in nuclear decay; exposure to radioactive substances
- radical expression — an expression in which radical signs appear.
- red mercuric oxide — a slightly crystalline, water-soluble, poisonous compound, HgO, occurring as a coarse, orange-red powder (red mercuric oxide) or as a fine, orange-yellow powder (yellow mercuric oxide) used chiefly as a pigment in paints and as an antiseptic in pharmaceuticals.
- 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.
- separation anxiety — the normal fear and apprehension expressed by infants when removed from their mothers or approached by strangers.
- sex discrimination — the practice of treating male and female people unequally
- sexual intercourse — genital contact, especially the insertion of the penis into the vagina followed by orgasm; coitus; copulation.
- sexual orientation — one's natural preference in sexual partners; predilection for homosexuality, heterosexuality, or bisexuality.
- six-finger country — an isolated area considered as being inhabited by people who practise inbreeding
- sixth-form college — (in England and Wales) a college offering A-level and other courses to pupils over sixteen from local schools, esp from those that do not have sixth forms
- smooth fox terrier — a breed of short-haired fox terrier with a mostly white, smooth coat.
- solvent extraction — Solvent extraction is the separation of a particular substance from a mixture by dissolving that substance in a solvent that will dissolve it, but which will not dissolve any other substance in the mixture.
- strontium monoxide — a white insoluble solid substance used in making strontium salts and purifying sugar. Formula: SrO
- thought experiment — Physics. a demonstration or calculation that is based on the postulates of a theory, as relativity, and that demonstrates or clarifies the consequences of the postulates.
- unix international — (body) (UI) A consortium including Sun, AT&T and others formed to promote an open environment based on Unix System V, including the Open Look windowing system.
- vermiform appendix — a narrow, blind tube protruding from the cecum, having no known useful function, in humans being 3 to 4 inches (8 to 10 cm) long and situated in the lower right-hand part of the abdomen.
- vigoureux printing — a printing method in which worsted fibers are printed with the desired color while in sliver form and then processed into yarn, producing a mixed color in the spun yarn and woven fabric.
- xenon hexafluoride — a colorless, crystalline compound, XeF 6 , that melts at 50°C to a yellow liquid, and boils at 75°C.