What counts as "beyond a dictionary entry".
Are you talking about
length, or content?
The latter. The aforementioned "Nigger" article contains a great deal
of material that one would not find in any dictionary with which I'm
familiar.
It also contains a great deal of material that one would not find in
any encyclopedia with which I'm familiar.
And most of the material I think would be *more likely* to be in a
dictionary than an encyclopedia. Meaning, etymology, usage,
derivatives. These are all things more likely to be found in a
dictionary than an encyclopedia.
Basically, if you took a dictionary, and removed the space
requirements, and then took an encyclopedia, and removed the space
requirements, the content of
http://en.wikipedia.org/wiki/Nigger would
likely be in the former, and not the latter.