Only showing entry, not entire category

Is it possible to not display particular category in normal view of the blog, but do display it when viewing a single entry?
Basically, I want a category to be hidden from the normal view of the blog, but entries I make to thise particular category should be able to be seen if someone is directed to its URI.
I imagine I would check the $single variable, but am wondering how I might structure the statement and where it would be placed?
Probably something like:
if $single and if theCategory {
display the entry
}
Thanks.