The Collaborative International Dictionary of English v.0.48:

Splinter \Splin"ter\, v. t. [imp. & p. p. Splintered; p. pr. &
   vb. n. Splintering.] [Cf. LG. splittern, splinteren. See
   Splint, n., Split.]
   1. To split or rend into long, thin pieces; to shiver; as,
      the lightning splinters a tree.
      [1913 Webster]

            After splintering their lances, they wheeled about,
            and . . . abandoned the field to the enemy.
                                                  --Prescott.
      [1913 Webster]

   2. To fasten or confine with splinters, or splints, as a
      broken limb. --Bp. Wren.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Splinter \Splin"ter\, v. i.
   To become split into long pieces.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Splinter \Splin"ter\, n. [See Splinter, v., or Splint, 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.
   [1913 Webster]

   Splinter bar.
   (a) A crossbar in a coach, which supports the springs.
   (b) The bar to which the traces are attached; a roller bolt;
       a whiffletree.
       [1913 Webster]

WordNet (r) 3.0 (2006):

splinter
    n 1: a small thin sharp bit or wood or glass or metal; "he got a
         splinter in his finger"; "it broke into slivers" [syn:
         splinter, sliver]
    v 1: withdraw from an organization or communion; "After the
         break up of the Soviet Union, many republics broke away"
         [syn: secede, splinter, break away]
    2: divide into slivers or splinters [syn: sliver, splinter]
    3: break up into splinters or slivers; "The wood splintered"
       [syn: splinter, sliver]

The Free On-line Dictionary of Computing (19 January 2023):

SPLINTER

   A PL/I interpreter with debugging features.

   [Sammet 1969, p.600].

   (1995-01-19)