Why is glass considered a supercooled liquid ?

Explanation

Liquids have the characteristic property i.e., the tendency to flow . Glass also shows this property , though it flows very slowly . Glass panes fixed to windows or doors of old buildings are invariably found to be slightly thicker at the bottom than the top . This is because the glass flows down very slowly and makes the bottom portion slightly thicker . Therefore , glass is considered as a supercooled liquid .