Tenacious

What does Tenacious mean, or more importantly what does it stand for when it comes to research...
Some people, expect to type in a query and some robotic being will magically poof their answer, when it doesn't they give up.
That's when I come in...
To me being tenacious means I am driven beyond all hope of sanity to find what it is I'm looking for, I am like a dog chewing a bone- I cannot stop until I have had the "eureka" moment. Everything ceases to exist, and my every waking thought is that which I search for, constantly turning over, and over in my mind.
To me the biggest reward is finding and linking the subject I am searching, similar to finding the missing piece to your favorite jigsaw puzzle.