Undermining structures

Joetry
Joetry
Apr 13, 2015, 10:42 PM |
3

Thought watching my fair of chess videos I come across the term underming. Now I understand what it means in a tactical sense such as overloading or removing the gaurd but I do not vividly understand the term when used to describe " undermining pawn structure". Could someone clarify this idea for me.