Wordnet 3.0
NOUN (1)
1. 
 King of Great Britain and Ireland from 1760 to 1820; 
 the American colonies were lost during his reign; 
 he became insane in 1811 and his son (later George IV) acted as regent until 1820 (1738-1820); 
[syn: George, George III]
WordNet (r) 3.0 (2006):
George III
    n 1: King of Great Britain and Ireland from 1760 to 1820; the
         American colonies were lost during his reign; he became
         insane in 1811 and his son (later George IV) acted as
         regent until 1820 (1738-1820) [syn: George, George III]