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]

Moby Thesaurus II by Grady Ward, 1.0:

136 Moby Thesaurus words for "splinter":
   atomize, bit, black sheep, blemish, breach, break,
   break into pieces, break to pieces, break up, breakage,
   breakaway group, burst, butt, camp, caucus, chip, chunk, cleft,
   clip, clipping, collop, crack, crash, crumb, crunch, crush, cut,
   cut to pieces, cutting, demolish, diffuse, disintegrate, disperse,
   disrupt, division, dollop, end, ethnic group, faction, fission,
   fissure, foreign body, foreign intruder, fracture, fragment, gap,
   gob, gobbet, grind, gruel, hunk, impurity, interest,
   interest group, intruder, lath, lump, make mincemeat of,
   mere shadow, mince, minority group, misfit, modicum, moiety,
   monkey wrench, morceau, morsel, mote, nip, oddball, offshoot,
   paper, paring, particle, party, pash, patch, piece,
   political party, pressure group, pulverize, rail, rake, rasher,
   rent, rift, rip, rive, rupture, scale, scatter, scoop, scrap, sect,
   shadow, shard, shatter, shaving, shiver, shred, side,
   silent majority, skeleton, slash, slat, slice, slip, slit, sliver,
   smash, smash up, smatter, smithereen, snack, snatch, snick, snip,
   snippet, soup, speck, splinter group, split, squash, squish,
   stitch, stone, streak, stump, tag, tatter, tear, vein,
   vocal minority, wafer, weed, wing



The Free On-line Dictionary of Computing (30 December 2018):

SPLINTER

   A PL/I interpreter with debugging features.

   [Sammet 1969, p.600].

   (1995-01-19)