Definition of exocentric:
(adj) :
Focused or centered on something outside of itself.
(adj) :
(grammar, of a phrase or compound) Not having the same part of speech as any of its constituent words.
(adj) :
(semantics, of or relating to a compound term) Not having the same semantic referent as the semantic referent of any of its constituent parts.
(n) :
(grammar) An exocentric compound.