Wordnet 3.0
NOUN (1)
1. 
 a long (usually sleeveless) tunic of chain mail formerly worn as defensive armor; 
[syn: hauberk, byrnie]
WordNet (r) 3.0 (2006):
byrnie
    n 1: a long (usually sleeveless) tunic of chain mail formerly
         worn as defensive armor [syn: hauberk, byrnie]