Plain English Meaning
Going back over something a student didn't get right the first time and reteaching it until they can do it properly.
Full Definition
In flight instruction, the process of identifying a learner's specific weakness or deficiency and providing targeted additional instruction, practice, or review to bring their knowledge or skill up to the required standard.
Context Anchor
Seen in flight instructor training when discussing how an instructor responds after a learner makes repeated errors or shows a gap in understanding.
Derivation
From the Latin remediare, meaning 'to heal' or 'to cure,' built from re- ('again') and mederi ('to heal'). The use keeps that flavor: a problem is identified and treated until it's no longer a weakness.