Definition: What is Learning in Pedagogy?

There has been a lot of attempts to explain and define what learning really is but still there are raging disputes. However diverse the definitions are, my favorite definition of learning is "the state in which a learning acquires permanent change of behavior." I define learning as "permanent" since if something learned is forgotten, there's no learning at all.

Here are other definitions of learning:

1. Learning is a process by which behavior is either modified or wholly changed through experience or training.

2. It is an ongoing process of continued adaptation to one's environment  assimilation of new information and accommodation of new input to fir prior knowledge.