The Collaborative International Dictionary of English v.0.48:

Anglomania \An"glo*ma"ni*a\, n. [Anglo'cf + mania.]
   A mania for, or an inordinate attachment to, English customs,
   institutions, etc.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Anglomania
    n 1: an excessive enthusiasm for all things English