The phrase "practical application" means using or applying something in real-life situations or circumstances. It refers to putting knowledge, skills, or ideas into practical use to solve problems or achieve desired results. Full definition
Once we can really define this, it can help us in terms of practical application of what we're doing. (completehumanperformance.com)
Review of theories and research in parent - child interaction from birth through adolescence and exploration of practical application in various settings. (liberalarts.vt.edu)
There are hundreds of practical applications for a digital moisture meter. (remonline.com)