What is Core Stability?

It's a term used in our industry on a daily basis, but if someone actually asked you 'what is core stability?' - how well would you be able to explain it? 
It's a term used in our industry on a daily basis, but if someone actually asked you 'what is core stability?' - how well would you be able to explain it? 

Core Stability : Milltown Physiotherapy

What is Core Stability? Core Strength Exercises

What is Core Stability? - Lamberti Physiotherapy

Core stability: is it your body's real achilles heel? — Sydney

Core Stability can ruin your back & you won't lose tummy fat

Core stability

Core stabilization exercises on two force platforms. *Variations

Core strength for runners: 3 basic exercises to get faster

The McGill Big 3 For Core Stability – Squat University