NOUN (2)

1. any of the British rulers who were members of the House of Hanover;

2. a member (or supporter) of the house of Hanover;


ADJECTIVE (1)

1. of or relating to the former English royal House of Hanover or their supporters;

The Collaborative International Dictionary of English v.0.48:

Hanoverian \Han`o*ve"ri*an\ (h[a^]n`[-o]*v[=e]"r[i^]*an), a.
   Of or pertaining to Hanover or its people, or to the House of
   Hanover in England.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Hanoverian \Han`o*ve"ri*an\, n.
   A native or naturalized inhabitant of Hanover; one of the
   House of Hanover.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Hanoverian
    adj 1: of or relating to the former English royal House of
           Hanover or their supporters
    n 1: any of the British rulers who were members of the House of
         Hanover
    2: a member (or supporter) of the house of Hanover