Definition of splinter

• n. - To split or rend into long, thin pieces; to shiver; as, the lightning splinters a tree.
• n. - To fasten or confine with splinters, or splints, as a broken limb.
• v. i. - To become split into long pieces.
• n. - A thin piece split or rent off lengthwise, as from wood, bone, or other solid substance; a thin piece; a sliver; as, splinters of a ship's mast rent off by a shot.