Dictionary.net

resembling or consisting of or embedded with long slender fragments of (especially) wood having sharp points; "a rough splintery floor of old pine boards"

subject to breaking into sharp slender pieces

resembling or consisting of or embedded with long slender fragments of (especially) wood having sharp points; "a rough splintery floor of old pine boards"

subject to breaking into sharp slender pieces

Consisting of or resembling splinters; discovering scales arising from splits or fissures, parallel to the line of fracture.

Consisting of or resembling splinters; having splinters or scales adhering, as in a fracture.