Wordnet 3.0
NOUN (2)
1. 
 a native or inhabitant of Iberia in the Caucasus; 
2. 
 a native or inhabitant of the Iberian Peninsula (especially in ancient times); 
ADJECTIVE (1)
1. 
 of or relating to the Iberian Peninsula or its inhabitants; 
The Collaborative International Dictionary of English v.0.48:
Iberian \I*be"ri*an\, a.
   Of or pertaining to Iberia.
   [1913 Webster]
WordNet (r) 3.0 (2006):
Iberian
    adj 1: of or relating to the Iberian Peninsula or its
           inhabitants
    n 1: a native or inhabitant of Iberia in the Caucasus
    2: a native or inhabitant of the Iberian Peninsula (especially
       in ancient times)