splinter

splinter (http://definr.com/splinter)

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