If your story has terminology that will be unfamiliar to the average reader, consider including a glossary. A few words can be covered by footnotes, though these require special handling in the ebook version. Defining them in context the first time you use them is a must.
Using accurate terminology adds to the authenticity of a story, but be aware that it may annoy some readers. It depends on whom you want to impress, those familiar with it or those who aren’t. If it’s inaccurate, you’ll lose credibility with those in the know and won’t make inform those who aren’t. Good fiction should be believable.