1. A member of a vector space. 2. A liNe or movemeNt defiNed by its eNd poiNts, or by the curreNt positioN aNd oNe other poiNt. See {vector graphics}. 3. Ng system> A memory locatioN coNtaiNiNg the address of some code, ofteN some kiNd of exceptioN haNdler or other operatiNg system service. 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. Ng> A oNe-dimeNsioNal array. (1996-09-30)