WordNet (r) 3.0 (2006):

Demetrius
    n 1: son of Antigonus Cyclops and king of Macedonia; he and his
         father were defeated at the battle of Ipsus (337-283 BC)
         [syn: Demetrius, Demetrius I, Demetrius Poliorcetes]

Easton's 1897 Bible Dictionary:

Demetrius
   (1.) A silversmith at Ephesus, whose chief occupation was to
   make "silver shrines for Diana" (q.v.), Acts 19:24,i.e., models
   either of the temple of Diana or of the statue of the goddess.
   This trade brought to him and his fellow-craftsmen "no small
   gain," for these shrines found a ready sale among the countless
   thousands who came to this temple from all parts of Asia Minor.
   This traffic was greatly endangered by the progress of the
   gospel, and hence Demetrius excited the tradesmen employed in
   the manufacture of these shrines, and caused so great a tumult
   that "the whole city was filled with confusion."

     (2.) A Christian who is spoken of as having "a good report of
   all men, and of the truth itself" (3 John 1:12).


Hitchcock's Bible Names Dictionary (late 1800's):

Demetrius, belonging to corn, or to Ceres