I have known folks who were naked at home most of the time; yet never referred to themselves as a N or N. My X never referred to herself as a nudist either; even though she participated in social nudism. Those I have known who did call themselves nudists or naturists were active societal nudists, with AANR memberships and resort/club membership. They used either http://videonudism.com/suntan to “authenticate” their active involvement and dedication to the nudist philosophy.
I do not think you need trouble with defining or labeling your nude tendencies – unless you are actively seeking a social nudist environment. But in case you still wish to define what you do, I think the term “home-nudist” is applicable to your circumstance. As far as your last question, it depends on your aim. Should you get a bang out of the concept of other people seeing your wife nude, then you certainly might be venturing into hedonistic territory. I enjoyed my X being openly bare amongst other nudists; because her comfort with nudity was important to me. And also the acknowledgement of her attractivenes supplied me with some measure of pride. But it had little to do with some hedonistic impulse to exhibit my nude wife (p.s.
I am not judging you at all; just explaining http://nudistwmv.com ).