The site fill be a content site fill with extremely well researched articles written about a topic I am very very familiar with. Each article will be about 1,000-2,000 words with a cited bibliography.
For this site I have two names registered.
The first is TopKeywordBlog.com. This domain is awesome because this keyword is BIG, you would recognize it instantly, like websiteblog or baseballblog. However my site will not be a blog! I don't know if this will cause issues or not later one, since people might automatically classify my site as a silly blog instead a collect of academic quality articles on my topic.
The second is IndustryTerm.com. What I mean by this is a term that you would have heard if you were in the industry but otherwise not. For example ContentManagementSystem.com (but much much shorter).
Personally I like the industryterm better, but I know having Keyword.com really really helps your ranking and so I'm assuming keywordblog.com would help also.
I am completely at an impass because this site is not for industry people but for laypeople. The point of the site is to take the complicated theories of my industry and make them easily understood by everyone.
I'm not sure I like either domain that you are describing.
Why not IndustryMadeSimple.com or something like that? It worked for dummies.
If the content is as good as you say then the domain name is minimally important, unless you own Industry.com. Use the other domains as feeders.
If not that then my bias is IndustryKeywords.com