A "discovery tool" is a device or method that helps you find or learn something new. It assists in exploring, uncovering, and understanding things that were previously unknown. Full definition
We're fortunate to have so many book discovery tools and techniques available to us, but leveraging them effectively can be challenging. (bookmachine.org)
So if using discovery tools is not an option how can legal libraries improve the visibility of the databases that they subscribe to? (slaw.ca)
The use of discovery tools means that users do not have to explicitly choose the databases they are searching. (slaw.ca)