1. 
[syn: north wind, northerly, norther, boreas]
2.  (Greek mythology) the god who personified the north wind; 
- Example: "Boreas was pictured as bearded and powerful and winged and draped against the cold"
The Collaborative International Dictionary of English v.0.48:
Boreas \Bo"re*as\, n. [L. boreas, Gr. ?.]
   The north wind; -- usually a personification.
   [1913 Webster]
WordNet (r) 3.0 (2006):
boreas
    n 1: a wind that blows from the north [syn: north wind,
         northerly, norther, boreas]
    2: (Greek mythology) the god who personified the north wind;
       "Boreas was pictured as bearded and powerful and winged and
       draped against the cold"