The edges of fabric that are woven or finished so that they won't unravel.
Selvedges are important for keeping fabric from falling apart.
Examples:
The selvedges of the fabric are usually a different color.
When you sew, you should pay attention to the selvedges.
The selvedges are the strongest part of the fabric.
The cat likes to play with the selvedges of the blanket.
The selvedges are like the fabric's bodyguards, protecting it from falling apart.
I always check the selvedges before buying fabric.