Causing orientation; in chem., designating the influence of an atom or group of atoms in a compound upon the position of other atoms or groups that are subsequently introduced by substitution.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. positioning with respect to a reference system or determining your bearings physically or intellectually
Word Usage
"Using the war on terror as America's long-term orienting mission, though, generates many problems."