What is "shagreened"

Shagreen \Sha*green"\, Shagreened \Sha*greened"\a.

1. Made or covered with the leather called shagreen. ``A shagreen case of lancets.''
   --T. Hook.

2. (Zo["o]l.) Covered with rough scales or points like those on shagreen.

a. 1 Covered in shagreen 2 Having a rough surface similar to that of shagreen