Cygwin Pronunciation

[Gerald Combs]

Philip Leonard wrote:
> Gerald Combs wrote:
> 
>> Gyro and Cygnus are both in the Merriam-Webster, Dictionary.com, and
>> Wiktionary dictionaries of the English language (I don't have access to
>> the OED).  Does that not, by definition, make them English?
> 
> 
> Actually I think the Oxford English Dictionary is the definitive work
> for the English language.

Is this by consensus, or is there some sort of governing body for the
English language, similar to the Académie française?