Anglocentric refers to England and/or English culture rather than the language.
As far as I am aware anyway.
(
Jeru The Cunt of Monte Cristo, Thu 17 Apr 2008, 0:44,
archived)
It describes anything centred on or in England, including the language.
Englishcentric just ain't a word.. least in my OED on-line
(
Rapitinui can make me kick and moan, Thu 17 Apr 2008, 1:13,
archived)