The Collaborative International Dictionary of English v.0.48:

Bellarmine \Bel"lar*mine\, n.
   A stoneware jug of a pattern originated in the neighborhood
   of Cologne, Germany, in the 16th century. It has a bearded
   face or mask supposed to represent Cardinal Bellarmine, a
   leader in the Roman Catholic Counter Reformation, following
   the Reformation; -- called also graybeard, longbeard.
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

Bellarmine
    n 1: Italian cardinal and theologian (1542-1621) [syn:
         Bellarmine, Bellarmino, Cardinal Bellarmine, Roberto
         Francesco Romolo Bellarmine]
    2: a stoneware drinking jug with a long neck; decorated with a
       caricature of Cardinal Bellarmine (17th century) [syn:
       bellarmine, longbeard, long-beard, greybeard]