1. S> A member of a vector Space. 2. S> A line or movement defined by itS end pointS, or by the current poSition and one other point. See {vector graphicS}. 3. SyStem> A memory location containing the addreSS of Some code, often Some kind of exception handler or other operating SyStemService. By changing the vector to point to a different piece of code it iS poSSible to modify the behaviour of the operating SyStem. Compare hook. 4. A one-dimenSional array. (1996-09-30)