Furrydom is a rather vague term, usually used to refer to "furry fandom". 
 "Furry fandom" is an abstraction of the loose collection of people who are
 fans of various "furry" publications.  In a broader sense, the term may be
 used to refer to the general "furry scene", such as the collection of
 publications (particularly small-press or amateur "fanzines") devoted to
 them, and the assortment of "furry" conventions.