Fragment
noun, の adjective
Tear off a one-sided piece. It's only one part, not all the parts. It's a fragment.
The 破 reading is the one you learned, the 片 reading isn't one you've learned. Just think about how you're tearing off pieces of a hen (へん), one fragment at a time. Here little chicken, I want another feather from you please. *CAW*
地面はガラスの破片だらけなので、気をつけて下さい。
The ground is covered with glass fragments, so be careful.