The Collaborative International Dictionary of English v.0.48:

Blazonry \Bla"zon*ry\, n.
   1. Same as Blazon, 3.
      [1913 Webster]

            The principles of blazonry.           --Peacham.
      [1913 Webster]

   2. A coat of arms; an armorial bearing or bearings.
      [1913 Webster]

            The blazonry of Argyle.               --Lord
                                                  Dufferin.
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   3. Artistic representation or display.
      [1913 Webster]

WordNet (r) 3.0 (2006):

blazonry
    n 1: the official symbols of a family, state, etc. [syn: coat
         of arms, arms, blazon, blazonry]