Definition of "unshelled"

At every table on the baseball field Friday night there were glass vases filled with unshelled peanuts, Cracker Jack and toy baseballs, with miniature bats rising like stems and capped by University of Miami batting helmets.

2009 February 14, Karen Crouse, “Amid Scandal, ‘Alex Rodriguez Park’ Is Unveiled”, in New York Times‎

After intelligence indicated that the Germans were using the unshelled route almost exclusively, Uniacke would quickly shift all his guns there, with disastrous effects for the Germans.

2013, Spencer C. Tucker, The European Powers in the First World War: An Encyclopedia