The difference between expected and executed price, common during volatile or illiquid moments.
Slippage can be positive (better fill) or negative (worse fill). It is most visible around macro releases, market opens/closes, and on stop orders triggered through a gap.
ECN execution and tighter market hours reduce slippage on average.
Coral Markets publishes a full trading glossary so working traders can quickly check definitions in plain English. Every term ties back to how the concept actually shows up on MetaTrader 5 and on real charts.